Astronomers have discovered something that shouldn't exist: a galaxy so jam-packed with stars that they smash into each other about once a month.

Solar flares heat ions much more strongly than electrons. The finding offers a new explanation for spectral line broadening. Recent work from the Andrews suggests that particles in solar flares can ...

A successful builder by day and traversing the sky by night, Isaac Roberts took the first clear photograph of Andromeda, the ...

AP photographer Dmitri Lovetsky had been trying to photograph a plane flying across the disk of the sun for several days.

White dwarfs may still host habitable planets. Conditions like tidal heating and migration shape their potential for life. The Sun will eventually die. This will occur when it exhausts the hydrogen ...

Naval Postgraduate School students participate in the last class ever to operate FLTSATCOM. For more than 30 years, it has ...

Long before galaxies sparkled in the sky or stars took shape, invisible forces stirred in the early Universe. One of those ...

Hey everyone! So, I’ve been keeping up with all the latest from NASA, and there’s a lot going on. From amazing new telescope ...

A decade after the pair of observatories first detected gravitational waves, researchers are drawing up ambitious plans for ...

The dwarf planet Pluto and its five known natural satellites (Charon, Styx, Nix, Kerberos, and Hydra) may be frigid, but ...

Interstellar objects like 3I/ATLAS that have been captured in planet-forming disks around young stars could become the seeds ...

Astronomers have solved a centuries-old puzzle surrounding one of the Universe's oldest and densest star systems. Globular ...