Distant ‘space snowman’ unlocks mystery of how some dormant deep space objects become ‘ice bombs’

This image was taken by NASA’s New Horizons spacecraft on Jan. 1, 2019 during a flyby of Kuiper Belt object 2014 MU69. Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research…

Life on Enceladus? Europe eyes astrobiology mission to Saturn ocean moon

Europe could be heading to the Saturn moon Enceladus in search of life, according to a new report from planetary scientists who are masterminding a future large-class mission to the…

A cosmic ‘speed camera’ just revealed the staggering speed of neutron star jets in a world first

Curiosity rover searches for new clues about Mars’ ancient water

The steep path NASA’s Curiosity Mars rover took to reach Gediz Vallis channel is indicated in yellow in this visualization made with orbital data. At lower right is the point…

1st Boeing Starliner astronauts are ready to launch to the ISS for NASA (exclusive)

HOUSTON — Two former U.S. Navy test pilots, now NASA astronauts, can’t wait to finally get their hands on a new spacecraft. Butch Wilmore and Suni Williams told Space.com and…

Astronomers only knew of a single binary Cepheid system—they just found nine more

This Hubble image shows RS Puppis, a type of variable star known as a Cepheid variable. As variable stars go, Cepheids have comparatively long periods — RS Puppis, for example,…

NASA’s Lucy asteroid-hopping spacecraft pins down ages of 1st asteroid targets

Last November, when NASA’s Lucy spacecraft flew past its first official asteroid target named Dinkinesh, it found the space rock was not one, not two but three rocks huddled together.…

Three-year study of young stars with NASA’s Hubble enters new chapter

The ULLYSES program studied two types of young stars: super-hot, massive, blue stars and cooler, redder, less massive stars than our Sun. The top panel is a Hubble Space Telescope…

A flight out of this world

Rovers have roamed its alien terrain, scooping up rock samples and searching for signs of microbial life in basins once awash with water. An illustration of the Mars Aerial Ground…

Research unlocks supernova stardust secrets

Cassiopeia A is a supernova remnant in the constellation Cassiopeia. Credit: NASA/CXC/SAO Curtin University-led research has discovered a rare dust particle trapped in an ancient extra-terrestrial meteorite that was formed…