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April 2021

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178 articles

April 18
- On This Day in Space! April 18, 2014: NASA's LADEE probe crashes into the moon
- NASA's Mars helicopter Ingenuity is ready to make its first flight attempt Monday
- These 4 Crew-2 astronauts are ready to ride a SpaceX rocket into orbit
- Russia joins China's mission to sample an asteroid and study a comet
- Lyrid meteors face off against a bright moon this week
April 17
- NASA may attempt 1st Mars helicopter flight on Monday
- How to watch the Mars helicopter Ingenuity's first flight online
- SpaceX test-fires rocket ahead of Crew-2 astronaut launch for NASA
- NASA's Mars helicopter Ingenuity aces troublesome spin test
- Watch live Monday: The science riding on SpaceX's Crew-2 mission
- Space photos: The most amazing images this week!
- The top space stories of the week!
- SpaceX's Crew-2 astronaut mission for NASA: Live updates
- SpaceX's Crew-2 mission to the International Space Station in photos
- As NASA troubleshoots its Mars helicopter, Perseverance rover keeps busy
- NASA's New Horizons Pluto spacecraft is still exploring, 50 AU from the sun
- SpaceX agrees to steer Starlink internet satellites clear of space station, NASA spacecraft
- Soyuz MS-17 crew returns to Earth after 185 days on space station
April 16
- Humans are both the weakest and the strongest link in the chain of space missions — Commander's report: lunar day 14
- NASA picks SpaceX's Starship to land Artermis astronauts on the moon
- In photos: The Expedition 64 mission to the International Space Station
- Crew-2 astronauts arrive in Florida ahead of SpaceX launch next week
- President Biden nominates former astronaut Pamela Melroy for NASA deputy administrator
- Space Chat with Space.com: Tune in Fridays for science, space and more!
- 'For All Mankind' actor lauds alternative-history show's family feel
- Pictures from space! Our image of the day
- 5 twinkling galaxies help us uncover the mystery of the Milky Way's missing matter
- Meet Crew-2: The 4 space-bound astronauts launching aboard SpaceX's Crew Dragon
- This week in our Space.com forums: SpaceX prizes, first eclipses, and black holes!
- 5,200 tons of space dust falls on Earth each year, study finds
- Supernova deaths of white dwarf stars may explode like a nuclear bomb
- You can watch a NASA astronaut and 2 cosmonauts return to Earth in a Soyuz capsule tonight
- Five ways artificial intelligence can help space exploration
- NASA, SpaceX are 'go' to launch Crew-2 astronauts to space station on Earth Day
April 15
- These 3 spinning brown dwarfs are the fastest 'failed stars' ever seen
- NASA's New Horizons probe reaches rare distance, looks out to farthest Voyager
- Scientists paint best yet portrait of closest known fast radio burst
- 'For All Mankind' sneak peek: Family tensions erupt in penultimate season 2 episode 'Triage'
- SpaceX's next astronaut launch for NASA lifts off April 22. How to watch online.
- Russia is going back to the moon this year
- Galaxies, the cosmic cities of the universe, explained by astrophysicist
- St. Vincent's La Soufrière volcano eruption spotted from space (photos)
- Scientists get more great looks at the 1st black hole ever photographed
April 14
- Curious Kids: Could octopuses evolve until they take over the world and travel to space?
- 'Star Trek: Picard' Season 2 teaser trailer is teeming with Easter eggs
- US Mint to honor astronaut Sally Ride on 'American Women' quarter
- Exclusive: A little-known Jules Verne adventure novel scores a sci-fi comic book series with 'Lighthouse'
- Blue Origin aces 'astronaut rehearsal' New Shepard test flight
- Startup Phantom Space aims to launch 1st orbital mission in 2023
- NASA's OSIRIS-REx spacecraft begins its farewell tour of near-Earth asteroid Bennu
- Salute the enduring spirit of the 'Verse with this shiny new 'Firefly-Artbook'
- Earth nearly lost all its oxygen 2.3 billion years ago
- Lyrid meteor shower 2021: When, where & how to see it
- Japanese ispace lander to carry UAE moon rover to lunar surface in 2022
- Blue Origin to launch 'astronaut rehearsal' New Shepard test flight today. How to watch live.
- Did lightning help spark life on Earth?
- Weird 'blue' dunes speckle the surface of Mars in NASA photo
- SpaceX will launch Astrobotic lander to the moon with NASA's ice-sniffing VIPER rover
- Alien hunters should search for artifacts on the moon, study suggests
- Astronomers detect a bright-blue bridge of stars, and it's about to blow
April 13
- Lego launching NASA/ESA Ulysses solar probe as VIP reward set
- Embrace your Dark Side with this official $150K 'Star Wars Death Star' watch
- Fireball meteor burns up over South Florida
- Sunshine and 'moonwalks' heal the Selene III crew's dying optimism — Commander's report: lunar day 11
- The water on Mars didn't run dry all at once, study finds
- Universal Astronaut Insignia to unite world space explorers and travelers
- 'Space Hero' reality show competition signs space act agreement with NASA
- 'Dark sirens' could solve one of the greatest mysteries in cosmology
- NASA's Mars helicopter Ingenuity won't fly until next week at the earliest
- SpaceX's SN15 Starship prototype rolls out to launch pad
April 12
- A Northrop Grumman robot successfully docked to a satellite to extend its life
- 'Awaken' documentary captures natural beauty of Earth and our night sky
- Epic NASA video celebrates 40 years of the space shuttle
- Stepping into the 'Beyond': New book celebrates 60th anniversary of first man in space
- Take a deep listen to these celestial-inspired sounds from NASA (Videos)
- April new moon 2021: Planets become more visible before the moon occults Mars
- Yuri Gagarin, First Man in Space (Photo Gallery)
- From the deepest seas to Perseverance's home on Mars, curiosity drives astronaut Kathy Sullivan
- UAE names two new astronauts, including first woman candidate
- A small, car-sized asteroid just gave Earth a close shave
- From Yuri Gagarin's launch to today, human spaceflight has always been political
- Casio's new digital watch marks 40 years since first space shuttle launch
- In photos: NASA's first space shuttle flight, STS-1 on Columbia
- 60 years of human spaceflight brings in tech changes and emphasis on diversity
- Why is NASA sending a woman to the moon?
April 11
- Teach your kids to code a Mars helicopter game with this NASA guide
- Over a third of Antarctic ice shelf could collapse as climate change warms the Earth
- Hubble telescope captures striking image of a dying galaxy
April 10
- NASA delays Mars helicopter Ingenuity's 1st flight to April 14
- The Mars helicopter Ingenuity is about to make history in the skies of another world
- How NASA's Mars helicopter Ingenuity can fly on the Red Planet
- Make your own Mars helicopter Ingenuity out of paper with this NASA guide!
- Exclusive: Salute 'Star Wars Day' with this mouth-watering 'Star Wars: Galactic Baking' cookbook
- Yuri's Night 2021: Celebrate 60 years of human spaceflight tonight with Bill Nye, astronauts, OK Go and more
April 9
- NASA's Mars Helicopter Ingenuity is 'go' for historic 1st flight
- NASA to land 1st person of color on the moon with Artemis program
- Biden proposes $24.7 billion NASA budget in 2022 to support moon exploration and more
- 'For All Mankind' sneak peek: Astronaut climbs to edge of space in a T-38 in 'And Here's to You'
- Watch NASA's Mars helicopter Ingenuity test its blades! (video)
- Win some SpaceX swag in our latest giveaway!
- Soyuz MS-18 crew launches to space station 60 years after first human spaceflight
- 20 years of otherworldly thought experiments: A Q&A with artist Jonathon Keats
- Hubble telescope finds rare double quasars in ancient galactic collisions
- Director Neil Burger's 'Voyagers' launches a colony ship to the stars
- Helicopter on Mars! NASA webcast teaches kids about Ingenuity's upcoming 1st flight
April 8
- You can watch a Soyuz rocket launch a US-Russian crew to the International Space Station early Friday
- A tiny, wobbling muon just shook particle physics to its core
- The Great North American Solar Eclipse of 2024 is just three years away
- Mars helicopter Ingenuity unlocks its rotor blades to prepare for 1st flight on Red Planet
- Teach your kids about NASA's Mars helicopter Ingenuity with a free webcast today
- Tiny Astroscale satellite will test space junk cleanup tech with magnets
- Space-based solar power getting key test aboard US military's mysterious X-37B space plane
April 7
- 'World of Tanks' honors the 60th anniversary of Yuri Gagarin's historic spaceflight with 'To the Stars!' event
- Philip Chapman, first Australian-born NASA astronaut, dies at 86
- These selfies of NASA's Mars helicopter with the Perseverance rover are just amazing
- Air Force's new hypersonic missile fails to launch during key test flight
- Spooky 'spiders on Mars' finally explained after two decades
- Alien raindrops are similar to those on Earth
- SpaceX launches another 60 Starlink satellites into orbit and sticks rocket landing
- NASA, SpaceX target Oct. 23 for Crew-3 astronaut launch
- SpaceX will launch new Starlink satellites on a veteran rocket today. Here's how how to watch.
- 'Resident Alien' renewed for a second season on Syfy
- Commander's cover: An envelope's flight through space, time and eBay
- No, the Perseverance rover didn't spot a rainbow on Mars
- Hubble telescope reveals a gorgeous, detailed new view of the Veil Nebula
- Selene III commander's report: When all hope drains away from the crew on the 'moon' — Day 8
April 6
- NASA just dropped an Orion space capsule into a pool for science
- First 'Space Jam: A New Legacy' trailer recruits LeBron James and Bugs Bunny to battle the Goon Squad
- Lava tubes in Hawaii could be a dress rehearsal for Mars colonies
- These weird lumps of 'inflatons' could be the very first structures in the universe
- Mars Helicopter Ingenuity snaps 1st color photo on Red Planet
- Dark matter 'annihilation' may be causing the Milky Way's center to glow
April 5
- First look at Captain Janeway in 'Star Trek: Prodigy'
- 'Star Trek: Lower Decks' Season 2 teaser trailer promises more mayhem in space
- 'Star Trek: Discovery' teaser trailer for Season 4 sounds like every other season
- NASA's Mars helicopter Ingenuity has survived its first Martian night alone as 1st test flight looms
- SpaceX identifies cause of Starship SN11 prototype's crash
- 'Star Trek: Picard' Season 2 teaser trailer reveals the return of a familiar 'Next Generation' foe
- New Space Explorers Club offers monthly access to astronauts
- See the 1st trailer for 'Stowaway,' Netflix's newest sci-fi film
- Dark matter could be made of black holes from the beginning of time
- 'Star Trek: Lower Decks' Season 1 warps onto Blu-ray May 18
- Astronauts move SpaceX capsule to new docking port for 1st time ahead of space station crew arrivals
- NASA's InSight lander detects two medium marsquakes on the Red Planet
- Antimatter cooled to near absolute zero by laser beam
- NASA selects 9 scientists to join 2022 Korea Pathfinder Lunar Orbiter mission
- Astronomers see a ghostly 'radio jellyfish' rise from the dead in the southern sky
April 4
- A tiny crystal device could boost gravitational wave detectors to reveal the birth cries of black holes
- Six ways satellites make the world a better place
- If everyone on Earth sat in the ocean at once, how much would sea level rise?
- NASA's Mars helicopter Ingenuity touches down on the Red Planet
April 3
- Debris from SpaceX rocket launch falls on farm in central Washington
- The dingo fence from space: Satellite images show how these top predators alter the desert
- Fiery 'airburst' of superheated gas slammed into Antarctica 430,000 years ago
- What do birds have to do with stargazing? A lot, it turns out.
- Best night sky events of April 2021 (stargazing maps)
April 2
- Solar geoengineering is worth studying but not a substitute for cutting emissions, study finds
- Discovery of two new giant radio galaxies offers fresh insights into the universe
- What's up with this weird green rock on Mars? Perseverance rover is trying to find out.
- New reports detail ongoing space threats, and Russia is raising concerns
- NASA estimates COVID-19 pandemic will cost the agency $3 billion, plus delays
- Mangroves from space: 30 years of satellite images are helping us understand how climate change threatens these valuable forests
- NASA's Juno spacecraft detects strange new auroras on Jupiter
- Why is there water on Earth?
- Why we need to get better at predicting space weather
- China's Tianwen-1 spacecraft captures stunning crescent Mars photos
- Elon Musk says he's going to put Dogecoin on 'the literal moon'
April 1
- NASA's Mars Curiosity rover snaps scenic selfie at 'Mont Mercou' (photo)
- Lego designer reveals hidden details in new Space Shuttle Discovery set
- Lego's NASA Space Shuttle Discovery set with Hubble is a space geek's dream (review)
- NASA delays Ingenuity Mars helicopter's first flight to April 11
- 'For All Mankind' sneak peek: Space physics fixes a vending machine in 'Don't Be Cruel'
- With 1st space station launch this spring, Chinese astronauts are training for flight
- China launches a second Gaofen-12 Earth observation satellite
- 'Star Trek' First Contact Day promises plenty of Trek news and nostalgia
- Hidden boundaries of lost continent 'Zealandia' revealed in incredible detail
- Astronomers find the 'safest place' to live in the Milky Way
- Enceladus may have ocean currents like we see around Antarctica