3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On ...

It came from outer space. Interstellar space, to be precise. From somewhere beyond the influence of our sun, possibly from ...

Then, on November 25, teams at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, joined the inner and outer portions ...

NASA's PUNCH mission is photographing the Sun like never before. It can see comets that are invisible to every other ...

NASA’s Interstellar Mapping and Acceleration Probe (IMAP) mission has successfully captured its first light observations, ...

A boom in satellites is brightening the night sky and hindering astronomers’ ability to study distant galaxies, sharpening concerns over who controls access to space. Planned spacecraft launches are ...

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...

Astronomers have produced the first continuous, two-dimensional maps of the outer edge of the sun's atmosphere, a shifting, ...

NASA's next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the Nancy Grace Roman Space ...

With construction complete, the telescope will now move into final testing. Following testing, Roman will be packaged and ...

After less than a year in orbit, the Southwest Research Institute-built PUNCH spacecraft have made major accomplishments, ...