Two galaxies colliding 275 million light years away from the sun captured by the Hubble Space Telescope in a new image revealing signs of intense star formation about to happen.
Learn more about NASA's New Horizons mission, which performed history's first flyby of the Pluto system on July 14, 2015.
Read about the history and future of Earth’s sun as well as fun facts about the sun’s age, size, temperature, and phenomena like solar flares.
New Horizons is about to reach some very rarefied space, but don't expect the NASA probe to rest on its considerable laurels.
Fifteen years after launching and six years after becoming the first probe to fly by Pluto, NASA's New Horizons is reaching 50 AU, a marker that has been passed only by four other spacecraft.
Alan Stern, who leads NASA's New Horizons mission to Pluto and beyond, has been selected to fly aboard SpaceShipTwo, Virgin Galactic's six-passenger suborbital space plane.
Get ready to see the Red Planet up close this week: , offering the closest view of the planet until 2035.
New Horizons' historic flyby of the KBO 2014 MU69, also known as Arrokoth, has revealed incredible insights about the birth of the solar system.
New Horizons' epic Pluto encounter took place five years ago. Celebrate the anniversary with a look at some of the probe's most dramatic and intriguing photos.
NASA's pioneering New Horizons spacecraft has traveled so far that its view of the cosmos is noticeably different than ours.
New Horizons' epic encounter with a small body in the far outer solar system is telling us a lot about how planets are born.
A year after New Horizons buzzed its second target, Arrokoth, a wealth of science has been revealed.
Hopefully you weren't too attached to "2014 MU69," because the most distant object ever explored has a new name.
New Horizons made an epic flyby of a Kuiper Belt object to ring in the New Year — but scientists need brand-new observations to truly understand that data.
A surprisingly gentle merger between two small primordial bodies formed the distant object Ultima Thule, a new study suggests.