Galaxy clusters are among the largest structures in our universe, consisting of hundreds or thousands of galaxies that have become gravitationally bound together over billions of years. Astrophysicists have long
Galaxy clusters are among the largest structures in our universe, consisting of hundreds or thousands of galaxies that have become gravitationally bound together over billions of years. Astrophysicists have long
If you set your alarm clock for 4 a.m. local time this week and head outside to a location with a clear and unobstructed view of the eastern horizon, you’ll
NASA Second Lady Usha Vance and NASA astronaut Suni Williams listen to the audience in this image from Aug. 4, 2025. Ms. Vance joined Williams at NASA’s Johnson Space Center
Cosmic rays could be a vital source of energy for life on icy moons, on Mars, or even on rogue planets that wander alone between stars; it’s possible, scientists say,
We usually think of satellites as small objects orbiting planets or stars. But in the broader universe, galaxies themselves can have satellites—smaller galaxies bound by gravity that orbit a larger
Space: it’s no longer just for astronauts in bulky suits. In recent years, some of the world’s most recognizable celebrities have strapped in and blasted off into microgravity. From billionaires
Get ready stargazers: the Perseid meteor shower peaks next week, Aug. 12-13, bringing up to 100 shooting stars per hour, along with the potential for dazzling fireballs The Perseid meteor
Almost five years after its formal announcement, Alien: Earth – the franchise’s first-ever TV series – is about to infect Hulu, FX, and Disney Plus. Ahead of its two-episode premiere,
Big systems projects are nothing novel in defense acquisition. However, a big systems project delivered fast and at an affordable cost is more uncommon. The Trump administration’s transformational vision for
WASHINGTON — Interlune, a startup with plans to harvest helium-3 from the moon, will fly an instrument on the first lunar rover from fellow startup Astrolab. To continue reading this






