Leonid meteors may appear whenever the constellation Leo is above the horizon.
Keep an eye on the sky early Monday morning for the Leonid meteors, and a possible second auroral storm.
Leonid meteors may appear whenever the constellation Leo is above the horizon.
SpaceX launched the Sentinel-6B ocean-mapping satellite from California early Monday morning (Nov. 17) on a landmark flight — the company's 500th orbital mission with a used rocket.
Keep an eye on the sky early Monday morning for the Leonid meteors, and a possible second auroral storm.
A few hours after darkness falls during November, the unquestioned landmark of the autumn night sky occupies a commanding position high in the south: the flying horse Pegasus.
Most people interested in space exploration already know lunar dust is an absolute nightmare to deal with. We’re already reported on numerous potential methods for dealing with it, from 3D printing landing pads so we don’t sand blast everything in a given area when a rocket lands, to using liquid nitrogen to push the dust off of clothing. But the fact remains that, for any long-term presence on the Moon, dealing with the dust that resides there is one of the most critical tasks. A new paper from Dr. Slava Turyshev of NASA’s Jet Propulsion Laboratory, who is enough of a polymath that our last article about his research was covering a telescope at the solar gravitational lens, updates our understanding of the physical properties of lunar dust, providing more accurate information that engineers can use to design the next round of rovers and infrastructure to support human expansion to our nearest neighbor.
Experts dive into the many missions headed to the moon and how space programs can avoid override.
Comet 3I/ATLAS recently emerged from behind the glare of the sun to become visible to ground-based telescopes.
Yesterday, on Nov. 14th, 2025, the crew of Shenzhou-20 has returned to Earth from China's Tiangong space station after a week's delay. The delay was imposed by damage inflicted on their spacecraft, allegedly caused by an impact with space debris. This impact cracked the window aboard the Shenzhou-20 spacecraft, forcing the crew to depart the station using the newly arrived Shenzhou-21 spacecraft. The three-person crew, consisting of Chen Dong, Chen Zhongrui, and Wang Jie, was originally scheduled to return to Earth on Nov. 5th.
The Pleiades ranks among humanity's most culturally significant celestial object, appearing in the Old Testament, celebrated as Matariki in New Zealand, and even inspiring Subaru's corporate logo. But astronomers have long suspected this tight cluster of bright stars represents only a fragment of something larger. The challenge lay in proving it.
Measuring the Solar System's velocity through space sounds straightforward, but it represents one of the most challenging tests of our cosmological understanding. As our Solar System travels through the universe, this motion creates a subtle asymmetry, a "headwind" where slightly more distant galaxies appear in our direction of travel than behind us. The effect is extraordinarily faint and requires sensitive measurements to detect.
Astronomers and expert stargazers share their top skywatching tips for beginners.
Test your space smarts with our weekly crossword challenge, crafted from Space.com's biggest headlines.
On Episode 186 of This Week In Space, Rod Pyle and Tariq Malik talk with Dr. Jim Green, NASA's former chief scientist, about snow on the moon.
An expert discusses how the space race to the moon could lead to possible warfare, and how policies could avoid future conflict.
Carl Sagan, along with co-author Edwin Salpeter, famously published a paper in the 70s about the possibility of finding life in the cloud of Jupiter. They specifically described “sinkers, floaters, and hunters” that could live floating and moving in the atmosphere of our solar system’s largest planet. He also famously talked about how clouds on another of our solar system’s planets - Venus - obfuscated what was on the surface, leading to wild speculation about a lush, Jurassic Park-like world full of life, just obscured by clouds. Venus turned out to be the exact opposite of that, but both of those papers show the impact clouds can have on the Earth for life. A new paper by authors as the Carl Sagan Institute, led by Ligia Coelho of Cornell, argues that we should look at clouds as potential habitats for life - we just have to know how to look for it.
Blue Origin's powerful New Glenn rocket just aced its second-ever mission —and returned to Earth safely for the first time. See a video of the booster's dramatic homecoming here.
SpaceX launched two Falcon 9 rockets in less than four hours overnight Friday (Nov. 14), adding another 58 satellites to its Starlink broadband megaconstellation.
NASA is facing increasingly sharp challenges as it pursues its goal of landing astronauts on the moon again before this decade is out — and as the space agency braces for another leadership change, it’s clear that the year ahead will also bring further challenges. How will NASA fare?
A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 39A (LC-39A) at Cape Canaveral Space Force Station to begin the Starlink 6-85 mission on Nov. 15, 2025. Image: Adam Bernstein / Spaceflight Now
Update Nov. 15, 2:24 a.m. EST (0724 UTC): SpaceX landed its first stage booster.
A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center to begin the Starlink 6-89 mission on Nov. 14, 2025. Image: Adam Bernstein / Spaceflight Now
Update Nov. 14, 11:40 p.m. EST (0440 UTC)
The James Webb Space Telescope didn't need much time to show us how wrong we were about the early Universe. Mere weeks after it began observations, it found galaxies in the very early Universe that were far more massive than our theories showed. These confounding images required an explanation.
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