James Webb Space Telescope looks back in time 4.4 billion years | Space photo of the day for July 21, 2026 The James Webb Space Telescope captured this image of a young galaxy cluster, MACS J0553.4-3342. Space · Jul 21
SpaceX launches satellite repair drone with 10-foot robotic arms to Earth orbit (video) SpaceX launched Northrop Grumman's trailblazing MRV-MEP satellite-servicing mission to Earth orbit today (July 21). Space · Jul 21
A massive crater was spotted on Google Earth. It could be a scar from an ancient meteorite impact While getting ready for a camping trip, an amateur astronomer spotted a possible crater. It appears to be a match, pending microscopic results. Space · Jul 21
Galaxy cluster's magnetic field reconstructed for 1st time with record-breaking astronomy map "We believe that the mechanism that 'turns on' these gigantic radio emissions is linked to the formation process of galaxy clusters." Space · Jul 21
The 1st 'Avengers: Doomsday' trailer is here, and it's stuffed to bursting with superheroes Robert Downey Jr.'s Doctor Doom makes his true debut (sort of) in this cluttered but colorful preview for the December blockbuster. Space · Jul 20
SpaceX targets July 23 for crucial Starship Flight 13 test launch after abort SpaceX is now targeting Thursday (July 23) for Flight 13 of its giant Starship rocket, after the first launch attempt aborted at the last second on July 16. Space · Jul 20
Scientists discover mystery molecule on Pluto and Saturn's moon Titan: 'We cannot say what it is' Despite being separated by billions of miles, Saturn's moon Titan and the dwarf planet Pluto share an unexplained surface signature. Space · Jul 20
50 years after Viking 1's historic Mars landing, NASA is looking to the Red Planet's skies NASA's Viking 1 mission blazed a crucial trail with its Mars landing on July 20, 1976. Now, half a century later, that trail leads up into the Red Planet's skies. Space · Jul 20
'Stranger Things' at 10: The Netflix streaming icon that made it cool to like science again Stranger Things changed the face of streaming, but it also had a significant impact on piquing the younger audience's interest in science. Space · Jul 20
Twice in a row: SpaceX rocket aborts launch at last second again (video) SpaceX suffered its second last-second abort in a row this morning (July 20), this time during an attempted Falcon 9 launch of Starlink broadband satellites. Space · Jul 20
Four astronauts, 3 spacecraft, 2 weeks in orbit: Artemis III will be NASA's most complicated mission ever NASA's Artemis III mission is shaping up to be NASA's most complex mission in history, coordinating the launch and rendezvous of three different spacecraft. Space · Jul 20
Artemis II was an incredible reminder of our shared humanity just when we needed it most (op-ed) The Artemis II astronauts reminded us that they considered it the honor of a lifetime to go to the moon for us - and as us - while transmitting daily that they couldn’t wait to come home to us. Space · Jul 20
Ancient sandstorm leaves behind wreckage on Mars | Space photo of the day for July 20, 2026 Remnants from Martian history stay scattered across the planet's surface. Space · Jul 20
Rocket launch costs have dropped 96% since 1960. How low can they go? The costs of space launch have fallen 96% in the past six decades and have the potential to plummet by nearly as much by 2040, a new study finds. Space · Jul 20
Space · Jul 20 Did Viking 1 find life on Mars 50 years ago? Here's why the debate continues Did Viking 1 find evidence of life on Mars? Fifty years after the NASA lander touched down, the jury is still out.
Space · Jul 20 An artificial 'Saturn's ring' of satellites could soon fill the sky, astronomers warn A bright Saturn's ring of satellites will encircle Earth if plans to launch a million orbiting data centers and tens of thousands of space mirrors will come to pass.
Space · Jul 19 'Aliens' at 40: James Cameron's sequel is a sci-fi icon, but did you know he quit the movie twice? Forty years ago, Aliens burst into our hearts, but this classic sequel nearly fell by the wayside due to some serious studio-created problems that saw James Cameron quit twice.
Space · Jul 19 Should we trust AI in the search for alien life? Scientists aren't so sure New research suggests AI can be repeatedly fooled into mistaking non-life for life.
Space · Jul 19 How Christopher Nolan's 'Interstellar' turned general relativity into the bad guy As Nolan embarks on "The Odyssey", we look back on the sci-fi movie where time dilation is as cruel as any Greek god.
Space · Jul 19 10 places in the US and Canada to see August's partial solar eclipse and Perseid meteor shower in 1 trip A partial solar eclipse by day and the peak of the Perseid meteor shower by night make Aug. 12, 2026, one of the best nights for skywatching and camping in years, but only for some parts of North America.
Space · Jul 19 James Webb Space Telescope discovers how black holes feed themselves Using the James Webb Space Telescope (JWST), astronomers have gotten a glimpse at the mechanisms that supermassive black holes use to feed themselves.
Space · Jul 19 Scientists told them, 'No, it's too dangerous,' but they did it anyway: Inside Japan's super-close asteroid flyby Japan's Hayabusa2 spacecraft returned spectacular images of a near-Earth asteroid following a super-close flyby on July 5, but heated debate was needed before teams signed off on the daring attempt.
Space · Jul 18 Another reusable rocket? Japan launches, lands RV-X prototype (video) Japan has succeeded in the first-ever flight test of its RV-X experimental reusable rocket prototype.
Space · Jul 18 This Week In Space podcast: Episode 219 — SpaceX Goes to War! On Episode 219 of This Week In Space, Rod Pyle and Tariq Malik discuss the space headlines for the past few weeks.
Space · Jul 18 'We knew we had a lot to live up to': As 'Aliens' turns 40, we chat with the legendary VFX masters who created the Alien Queen (interview) Legacy Effects' Oscar-nominated duo Shane Mahan and Lindsay MacGowan share tales from the trenches of 1986's 'Aliens'