Scientists estimate the Moon could hold roughly a billion tons of water, but even aggressive recycling may not make million-person lunar cities sustainable for long.

NASA’s Roman Space Telescope has begun its million-mile journey to L2, carrying a panoramic infrared camera designed to map billions of galaxies and uncover thousands of planets.

NASA's Roman Space Telescope wasn't designed for asteroid hunting, but its massive field of view makes it a powerful addition to Earth's planetary defense network.

SpaceX, Blue Origin, and others want enormous orbital data center constellations, prompting warnings over atmospheric pollution, debris, and an astronomy problem satellites are already making worse.

Astronomers have found strong evidence for a Jupiter-mass object orbiting a brown dwarf, potentially marking the first convincing detection of a moon beyond our solar system.

China launched and recovered the Long March 10B first stage on July 10 using a cable net on a sea-based vessel.

A new study claims that spraying reflective particles into Pacific Ocean clouds could amplify the cooling effects of La Niña by 40%.

Smithsonian Starstruck lets visitors walk through the Big Bang, brush past the Sun, and gaze into a black hole, all without leaving Washington, D.C.

The European Southern Observatory warns that rapidly growing satellite constellations could disrupt Earth's most powerful telescopes and is proposing new limits to protect astronomy.

Amazon now has enough Project Kuiper satellites in orbit to begin commercial internet service, though the network still trails Starlink by a considerable margin.

Amazon plans to launch its initial Leo satellite internet service later this year after placing nearly 400 satellites into orbit, setting up a bigger challenge to SpaceX's Starlink.

NASA has awarded $590 million in contracts to Astrobotic, Firefly, and Intuitive Machines to deliver landers and cargo to the Moon as part of its $30 billion Moon Base program.

NASA's Marshall Space Flight Center ran liquid nitrogen through L3Harris's cryocoupler at negative 321 degrees Fahrenheit.

SpaceX may be preparing its boldest Starlink expansion yet. Instead of just supporting mobile carriers, it could soon become one, and that could shake up the entire wireless industry.

A new study suggests laser-driven interstellar lightsails may face a hidden efficiency problem as the very light pushing them starts behaving less helpfully.

NASA’s proposed EVE mission would study young exoplanets to help explain why the galaxy has so few worlds sitting between super-Earths and sub-Neptunes.

A fresh comment from SpaceX President Gwynne Shotwell has reignited speculation about a future Tesla-SpaceX tie-up. It may not be happening soon, but the idea suddenly feels a lot less far-fetched.

Astronauts aboard the ISS reportedly took precautionary shelter measures after repair work on Russia’s long-troubled Zvezda module raised fresh concerns about air leaks.

Blue Origin's New Glenn rocket was destroyed during a hotfire test at Launch Complex 36 in Cape Canaveral on May 28, 2026.

In microgravity, legs do not do much. Orbit Robotics’ Helios replaces them with four arms built for movement and station work.

SpaceX’s first human trip toward Mars could be led by Chun Wang, a crypto billionaire with one private astronaut mission already behind him.

Elon Musk’s SpaceX compensation plan could unlock a massive stock award if the company reaches a huge valuation and builds a million-person Mars colony.

A new study suggests the Milky Way consumed an ancient dwarf galaxy billions of years ago, and its stellar remains may still be embedded within ours.

NASA is aiming for an early September 2026 launch of the Roman Space Telescope, a powerful new observatory that could transform astronomy with massive infrared sky surveys, huge data returns, and faster follow-up discoveries.

Blue Origin successfully reused its New Glenn rocket for the first time, marking progress in reusability - though a payload issue shows there’s still work ahead.

On its first crewed flight, NASA's lunar rocket displays its awesome power.