Pluto’s Wispy Atmosphere May Be Surprisingly Robust
The dwarf planet’s blue-tinged air may punch far above its weight
Stories by Mike Wall
NASA Selects Companies to Develop Human Lunar Landers
Blue Origin, Dynetics and SpaceX will each design and build spacecraft that could return astronauts to the Moon
Weird Neutrino Behavior Could Explain Long-standing Antimatter Mystery
But more data are needed before physicists know for sure
Molten Iron Rain Falls on Scorching-Hot Exoplanet
A planet called WASP-76 b may be the most extreme world we know of
Scientists Spot the Biggest Known Explosion in the Universe
The blast is about five times bigger than the previous record holder
NASA’s InSight Lander Reveals New Details of Martian Quakes and Magnetism
The spacecraft has recorded about 450 “Marsquakes” to date
Ancient Giant Galaxy Grew Fast and Died Young
Astronomers are puzzling over how this cosmic giant arose and expired so quickly in the early universe
Looming Potential Satellite Smashup Could Spawn Dangerous Debris Swarm
Thankfully, the probability of a collision may be as low as 0.1 percent
The International Space Station Is Getting a Commercial Module
Axiom Space will provide at least one habitable segment to help spur commercial activity in orbit
NASA’s TESS Planet Hunter Finds Its First Earth-Size World in “Habitable Zone”
TOI 700 d is a landmark discovery for NASA’s Transiting Exoplanet Survey Satellite
NASA’s Sun-Kissing Parker Solar Probe Lifts the Veil on Our Closest Star
The daring mission’s first results reveal surprises about the solar wind
Meet Arrokoth: Ultima Thule, the Most Distant Object Ever Explored, Has a New Name
The small body beyond Pluto visited by NASA's New Horizons spacecraft is now officially known as Arrokoth
SpaceX’s Starlink Constellation Could Swell by 30,000 More Satellites
The company’s constellation could eventually consist of 42,000 spacecraft
Saturn’s Rings May Be Ancient After All
Against earlier studies estimating an age of just 100 million years, new research suggests the planet’s rings could be as old as the solar system itself
Newfound Alien Planet Has a Bizarre Looping Orbit
Astronomers have never seen a world quite like HR 5183 b before
SpaceX Starhopper Rocket Prototype Aces Highest (and Final) Test Flight
Starhopper is passing the test-flight torch to orbital prototypes
Silica Blankets Could Make Mars Habitable
Thin layers of lightweight aerogel might be the main ingredient for making regions of the Red Planet more Earth-like
What Prevents Pluto’s Ocean from Freezing?
Layers of ice-like gas hydrates may insulate frigid ocean worlds across the cosmos
Mars Has Methane—But Does It Have Life?
Multiple lines of evidence suggest the gas occasionally surges into the Red Planet’s atmosphere. Could it be a sign of a subsurface biosphere?
Is NASA’s Golden Age of Space Telescopes Ending?
For the second year in a row, the White House is seeking to cancel one of the space agency’s top-priority astrophysics projects, the Wide-Field Infrared Survey Telescope
