NASA selected SpaceX's Falcon Heavy to potentially launch the Rosalind Franklin rover to Mars by late 2028 for a reported $175.7M. However, the White House's FY2027 budget proposal suggests canceling NASA's participation in the mission, putting its future in jeopardy. This marks NASA's second attempt at an ExoMars partnership after previous cancellations due to budget constraints.

AST SpaceMobile’s BlueBird 7 was declared lost after its deployment into an incorrect orbit following the New Glenn launch. The satellite, intended for 4G/5G connectivity, was placed in a 154 x 494 km orbit, too low for operational thrusters. Blue Origin is assessing the anomaly while AST SpaceMobile plans to recover costs via insurance.

Blue Origin successfully launched its New Glenn rocket for the third time, reusing the first stage, which landed successfully. However, the mission failed to place AST SpaceMobile's Bluebird-7 satellite in the correct orbit, resulting in its loss. This launch marks Blue Origin's first commercial mission, despite its ongoing reputation for slow operations and the satellite's failure.

SpaceX's Falcon 9 is set to launch the GPS III SV10 satellite for the U.S. Space Force on April 20, 2026, at 2:57 a.m. EDT. This mission marks the final satellite in the GPS III series, enhancing positional accuracy and jam resistance. The Falcon 9's first stage will return to Earth, marking its seventh flight.

Blue Origin's New Glenn rocket successfully launched the BlueBird 7 satellite, but it was deployed into an incorrect orbit. The launch occurred on April 19, with the first stage recovery executed successfully. AST SpaceMobile's BlueBird 7 aims to enhance cellular broadband capabilities in low Earth orbit, but its current status remains uncertain following the launch anomaly.

Danny Boyle's Sunshine (2007) explores a solar catastrophe, contrasting with the more uplifting Project Hail Mary. While both films feature astronauts facing imminent doom, Sunshine delves into psychological horror, influenced by Alien. The Icarus II mission aims to reignite the dying Sun, grounded in scientific theories, including insights from physicist Brian Cox.

The Lyrid meteor shower peaks on April 22, offering ideal viewing conditions with a dark sky post-moonset. Observers can expect 10 to 20 meteors per hour, originating near the star Vega in the constellation Lyra. This annual event is linked to Comet Thatcher, which last appeared in 1861 and will return in 2276.

April 18 features Venus transitioning into Taurus, with the Moon passing 5° north of Venus at 5 A.M. EDT and later passing 5° north of Uranus at 2 P.M. EDT. By evening, the Moon is over 2.5 days old and approximately 10 percent illuminated. For more details, refer to the full Sky This Week column.

Blue Origin's New Glenn rocket is set for its third flight, launching the BlueBird 7 satellite for AST SpaceMobile on April 19, 2026. This mission marks the first reuse of the booster, 'Never Tell Me the Odds', which previously launched in November 2025. The rocket's engines have been replaced for this flight, enhancing performance.

Blue Origin's New Glenn rocket is set for its third mission on April 19, 2026, reusing the Never Tell Me The Odds booster, previously used for NASA's ESCAPADE mission. This launch will deploy AST SpaceMobile's BlueBird 7 satellite into LEO, enhancing cellular broadband services. Successful reuse would position Blue Origin as the second company to achieve this milestone.

The poem critiques the juxtaposition of NASA's lunar ambitions with ongoing military conflicts, highlighting the disconnect between aspirations for humanity and the realities of civilian suffering. It questions the motivations behind space exploration, suggesting that the promise of space is overshadowed by hypocrisy and the plight of displaced children, urging a more humane approach to future endeavors.

The Lyrid meteor shower returns, peaking in 2026. Observers should locate the constellation Lyra, particularly the star Vega, to enhance visibility. Ideal conditions allow for 15-20 meteors per hour. Avoid looking directly at the radiant, face dark skies, and let your eyes adjust for optimal viewing. Capture the moment with photography tips provided.

Katalyst has initiated final ground testing of its LINK spacecraft, designed for the Gehrels-Swift rescue mission, at NASA's Goddard Space Flight Center. Following a contract awarded by NASA, LINK will undergo vibration and thermal tests before being integrated into Northrop Grumman's Pegasus rocket for a potential launch later this year to prevent the telescope's orbital decay.

SpaceX has secured its first Mars launch with NASA selecting its Falcon Heavy rocket to deploy the Rosalind Franklin rover in late 2028. This mission, part of the ExoMars program, aims to search for signs of life on Mars. NASA will provide crucial support, including a propulsion system and specialized instruments for the rover's scientific objectives.

Blue Origin's New Glenn rocket is set to launch for the third time on April 19, 2026, utilizing a previously flown first-stage booster. The NG-3 mission will deploy the BlueBird 7 satellite into LEO. This milestone aims to enhance Blue Origin's reusability capabilities, positioning it against SpaceX's established rockets like Falcon 9.

Venus transitions into Taurus on April 17, creating an ideal opportunity for skywatchers. The evening features a stunning view with Venus accompanied by a delicate crescent Moon in the western sky. Both celestial bodies are positioned beneath the sparkling star cluster M45, offering a picturesque scene for astronomy enthusiasts and casual observers alike.

SpaceX is set to achieve its 600th Falcon booster landing during the Starlink 17-22 mission on March 13, 2026. The Falcon 9 rocket, utilizing booster B1097 for its seventh flight, will deploy 25 satellites into LEO. Liftoff from Vandenberg Space Force Base is scheduled for 7:33:40 a.m. PDT, with landing on drone ship OCISLY expected shortly after.

Brad Bradington's rapid movement through a crowd illustrates Cherenkov radiation. As he exceeds the local speed of light, flashes of light from disturbed atoms pile up, creating a coherent wave, akin to a sonic boom. This phenomenon, first observed by Pavel Cherenkov in 1934, results in a blue glow, demonstrating the particle's interaction with its medium.

NASA has approved the provision of rocket, landing engines, and radioisotope heater units for Europe's Mars Franklin rover, selecting a Falcon Heavy for its 2028 launch. Originally, Russia was to supply the lander, but was removed from the project following its 2022 invasion of Ukraine. Airbus and Sener now hold contracts for its development.

Project Hail Mary by Andy Weir exemplifies a unique blend of hard and speculative science fiction, balancing scientific accuracy with imaginative storytelling. While the novel successfully navigates this complex terrain, the film adaptation diverges significantly, leaning more towards speculative elements. This distinction highlights the challenges of translating intricate scientific concepts into cinematic narratives without losing their essence.

April's new moon on April 17, 2026, offers optimal conditions for stargazing, revealing planets like Venus, Jupiter, and Uranus. The constellation Hydra can be observed alongside others such as Leo. This period is ideal for night sky photography, as the absence of moonlight enhances visibility of celestial objects and constellations.

NASA's Commercial Satellite Data Acquisition (CSDA) program approved Satellogic's NewSat constellation data for scientific use following a quality assessment report issued on March 9, 2026. The evaluation revealed strong radiometric accuracy and geometric performance, with the Mark IV sensor rated

U.S. Air Force airmen conducted tests of Anduril's YFQ-44A semiautonomous combat drone at Edwards Air Force Base. The exercise aimed to enhance the Collaborative Combat Aircraft program, demonstrating the drone's ease of maintenance and operational capabilities. The Air Force plans to acquire at least 1,000 CCAs for various missions alongside manned aircraft like the F-22 and F-35.

Researchers in Japan analyzed small Trojan asteroids using the Suprime-Cam on the Subaru Telescope, discovering that these asteroids do not exhibit the same color-coding as larger Trojans. Their findings challenge existing theories about asteroid formation, revealing an even spectral distribution among smaller Trojans, contrasting with the distinct

Russia and China each completed launches on April 17, 2026. Russia's Soyuz-2 rocket deployed a classified military payload involving multiple spacecraft from Plesetsk, with debris falling into the ocean. China's Long March 4C launched a greenhouse gas detection satellite from Jiuquan, but details on the rocket's lower stages remain undisclosed. SpaceX leads with 46 launches this year.

Comet R3 Pan-STARRS is nearing perihelion on April 19, 2026, at 0.499 AU from the Sun. It displays a green coma and a dust tail, with visibility improving as it approaches Earth. The comet's closest approach occurs on April 26, 2026, at 0.523 AU. Observations will be aided by NASA and NOAA technologies.

The James Webb Space Telescope (JWST) has captured stunning images of the Lobster Nebula, revealing a vibrant region of star formation. The observations highlight the intricate structures of gas and dust, showcasing the dynamic processes involved in starbirth. This discovery enhances our understanding of galaxy formation and the lifecycle of stars within the universe.

STARMUS VIII will celebrate the 10th anniversary of the Stephen Hawking Medal for Science Communication and the launch of the Jane Goodall EARTH Medal. The festival will feature Nobel Prize laureates, astronauts, and leading thinkers, gathering in Tenerife. The first confirmed speakers have been announced, promising an engaging lineup for attendees interested in science and communication.

A surge of solar wind, traveling at 700 km/s, may trigger geomagnetic storms tonight, potentially allowing the northern lights to be visible as far south as Illinois and Oregon. NOAA has issued a G2 storm watch, with chances of G3 activity. Optimal viewing times are from 5 p.m. to 2 a.m. EDT tonight.

NASA has selected a SpaceX Falcon Heavy to launch the Rosalind Franklin Mars rover for the European Space Agency no earlier than late 2028. This decision follows a partnership agreement from May 2024, with ESA independently developing the mission after cutting ties with Roscosmos. ESA awarded a €522 million contract to Thales Alenia Space on April 9, 2024, for mission elements.

Space Symposium 2026 highlighted a pivotal shift in the space industry, emphasizing a transition from hype to execution. Key speakers, including Laura Todd and Kelli Kedis Ogborn, underscored the importance of practical applications and common sense in advancing space initiatives. This event marks a significant moment for stakeholders aiming to implement tangible solutions in the aerospace sector.

April 16 featured a Ganymede transit of Jupiter, while a New Moon occurred at 7:52 A.M. EDT, creating optimal conditions for observing the zodiacal light. This phenomenon results from sunlight scattering off interplanetary dust, providing a unique celestial display. For more details on sky events, refer to the full Sky This Week column.

Colorado is emerging as a significant hub for space operations, focusing on horizontal launch technologies and supporting the Artemis generation. The state aims to foster innovation and collaboration within the aerospace sector, leveraging its existing infrastructure and expertise. This strategic positioning could enhance Colorado's role in the evolving landscape of space exploration and commercial activities.

The Sky This Week highlights astronomical events from April 17 to 24, including the peak of the Lyrid meteor shower. The week begins with a New Moon on April 17 at 7:52 A.M. EDT, providing optimal conditions for stargazing, particularly for viewing distant galaxies like M104, the Sombrero Galaxy, without moonlight interference.

NASA's Earth Observatory reported that Michigan experienced significant flooding due to above-normal precipitation in March and April 2026. The Grand River, particularly near Grand Rapids, reached minor flood stage, with river gauge data indicating rising levels. Residents were advised to prepare for potential evacuations as floodwaters stressed local infrastructure and dams across the state.

Final day at the Space Symposium 2026 in Colorado Springs emphasizes a shift from conceptual discussions to actionable strategies in the aerospace sector. Key topics include advancements in AI and infrastructure, highlighting the industry's transition towards implementation. Attendees report increased clarity and focus, signaling a commitment to tangible outcomes in space exploration and technology development.

James Clerk Maxwell's equations define the speed of light as 299,792,458 m/s in a vacuum. However, light slows down in materials due to their electric and magnetic properties, characterized by the index of refraction. This phenomenon illustrates how light interacts with matter, leading to slower speeds, sometimes even to walking pace in engineered materials.

NASA's Artemis 2 mission successfully demonstrated the Orion spacecraft's life support systems, completing a 10-day journey around the moon. Astronauts Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen reported positive performance, indicating readiness for future missions. The next mission, Artemis 3, is set for mid-2027, with potential lunar landings planned for 2028.

Blue Origin conducted a 19-second static fire test of its New Glenn rocket on April 16, 2026, at Cape Canaveral Space Force Station. This test prepares for the NG-3 mission, scheduled for April 19, which will reuse a previously flown booster. The mission will deploy a Block 2 BlueBird satellite for AST SpaceMobile into LEO.

Gen. Stephen Whiting delivered a keynote address at the 41st Space Symposium, reflecting on 250 years of military history and the principles that shape modern military operations. He praised the team behind the success of USSPACECOM, emphasizing the importance of collaboration and innovation in maintaining national security and advancing military capabilities in space.

Saxavord spaceport faces significant regulatory and financial challenges that threaten its future operations. The facility has incurred losses of approximately $7 million in 2023 and 2024, and is in technical default on a loan exceeding $14.3 million. Additionally, a formal complaint regarding fire safety systems may delay its first launch with Rocket Factory Augsburg later this year.

Army officials report significant progress in the Army Transformation Initiative (ATI) aimed at modernizing the aviation fleet, specifically transitioning from AH-64D to AH-64E models. Col. Tim Jaeger noted that two-thirds of the fleet has been rebalanced, with 1,100 aircraft transferred. Procurement funding for Apaches has decreased from $361.7M in FY26 to $1.5M in FY27.

NASA's recent imagery from Artemis II captures the Moon’s far side along the terminator, showcasing low-angle sunlight casting long shadows. Taken on April 6, 2026, the photo reveals the Orientale Basin's structure, enhancing contrast across the cratered terrain. This illumination provides valuable insights into the Moon’s geologic history and surface features.

Researchers utilized the Dark Energy Spectroscopic Instrument (DESI) to create the largest 3D map of the universe, with Earth at its center. This groundbreaking visualization allows scientists to explore dark energy, a mysterious force driving the universe's accelerated expansion. Each point of light in the map represents a galaxy, revealing the cosmos' vastness.

R Aquarii features a unique symbiotic binary system consisting of a cool red giant and a hot white dwarf in a 44-year elliptical orbit. The red giant exhibits pulsations with a period of approximately 390 days, resulting in variations in temperature and brightness. This stellar pair exemplifies an intriguing relationship in astrophysics.

Blue Origin conducted a static fire test of its BE-4 engines, igniting all seven for under 30 seconds. This marks the first hot fire of a previously flown booster, indicating progress towards operational readiness. Local maritime and aviation hazards suggest a potential launch as early as Sunday, April 19, enhancing the company's launch cadence and capabilities.

Apollo 16 launched on April 16, 1972, marking a significant moment in lunar exploration. Astronauts John Young and Charlie Duke confidently descended from the Lunar Module Orion onto the lunar surface, showcasing the advancements in space travel. Duke remarked on their assuredness, stating, 'there wasn’t any tentative step,' reflecting the growing confidence in lunar missions.

The Full Moon occurs when Earth is positioned between the Sun and the Moon, allowing sunlight to illuminate the Moon's surface fully. This alignment results in the Moon appearing bright and round in the night sky. The calendar for 2026 details the specific dates and phases of the Full Moon, providing astronomical enthusiasts with essential viewing information.

Bruno Araujo captured an image of NGC 2359, known as Thor’s Helmet, an emission nebula located approximately 15,000 light-years away in the constellation Canis Major. This nebula encircles a Wolf-Rayet star, characterized by its massive size and short lifespan, which generates powerful winds that expel gas and dust from the nebula's center.

Ganymede is set to transit Jupiter's eastern limb overnight on April 15, following Io's ongoing transit. This celestial event offers a unique opportunity for skywatchers to observe the largest moon of Jupiter as it moves across the planet. For more details on sky events, refer to the full Sky This Week column.

Pavel Alekseyevich Cherenkov, in 1934, investigated a faint blue glow in water caused by gamma rays, previously dismissed as fluorescence. His meticulous experiments revealed that the glow was asymmetric and dependent on particle speed, leading to the discovery of Cherenkov radiation. Despite initial indifference from the physics community, his work laid the foundation for future understanding.

Blue Origin has been selected by the U.S. Space Force to potentially develop a new launch site at Vandenberg Space Force Base for its New Glenn rocket. This decision marks a significant step towards expanding Blue Origin's launch capabilities in California, enhancing its competitive position in the U.S. launch market amid increasing demand for space access.

NASA launched six CubeSats to the International Space Station on April 11, 2026, as part of the Northrop Grumman Commercial Resupply Services 24 mission. The approximately 11,000 pounds of cargo included CubeSats from U.S. educational institutions and non-profits, such as Coconut, HUCSat, LEOPARDSat-1, and three PROVES CubeSats, which will deploy to conduct experiments.

Chief of Space Operations Gen. Chance Saltzman delivered remarks at the Space Symposium on April 15, 2026. His address focused on the evolving landscape of space operations, emphasizing the importance of collaboration among various stakeholders in the space domain. He highlighted ongoing initiatives and future strategies to enhance national security and space capabilities.

Celestron’s Weatherproof Telescope Cover offers protection for telescopes up to 11 inches against environmental elements. Constructed from aluminum-laminated material, the cover measures 57.9 by 70.1 inches (147 by 178 centimeters) and weighs 1.3 pounds (0.6 kilogram). Priced at $59.95, it is available for purchase through High Point Scientific and directly from Celestron's website.

Leonardo da Vinci, born April 15, 1452, in Italy, is celebrated as one of history's greatest polymaths and the quintessential Renaissance man. Despite limited formal education, including an apprenticeship with Andrea del Verrocchio, he achieved remarkable advancements in various fields such as mathematics, engineering, and anatomy, leaving a lasting legacy that continues to inspire.