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NASA is seeking applicants to participate in its next simulated one-year Mars surface mission to help inform the agency’s plans for human exploration of the Red Planet. The second of three planned ground-based missions called CHAPEA (Crew Health and Performance Exploration Analog) is scheduled to ki...

NASA’s Orion spacecraft for the Artemis II mission completed assembly and system tests, including checks for propulsion system leaks. It was tested in a vacuum chamber to replicate the space environment, with data collected to verify its readiness for lunar missions. Orion Spacecraft’s F...

The Gaia mission, launched by the European Space Agency, has completed a decade of groundbreaking astronomical observations, collecting over three trillion data points on two billion stars and celestial objects. As it transitions to retirement, we anticipate further insights with two major data rele...

After losing contact with Lunar Trailblazer on February 27, NASA engineers are still attempting to reestablish communication. Ground stations worldwide are listening for its signal, while scientists analyze available data. The mission’s primary science objectives may be lost, but NASA is weighing al...

Greenhouse gases are doing more than warming our planet — they’re reshaping space itself. As emissions cool and shrink the thermosphere, satellites experience less drag, allowing more space junk to linger in orbit. With thousands of new satellites launching every year, this congestion could le...

Astronomers using Gaia have uncovered an extraordinary cosmic mystery: a massive star family named Ophion that’s breaking all the rules. Unlike typical stellar siblings that stay close and drift together for eons, Ophion’s 1000+ young stars are scattering chaotically—and rapidly—across the Milky Way...