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Pluto craft to encounter Ultima Thule
New Horizons is the spacecraft that sent back those amazing images of Pluto in 2015. Ultima Thule is its next target, a billion miles beyond Pluto. The encounter is New Year's Day, but start watching now!
December 29, 2018
EarthSky’s top 5 stories of 2018
From the months-long eruption of Hawaii's Kilauea Volcano to a strange object discovered on the surface of Mars - and more - here's a quick roundup of the stories our readers enjoyed most in 2018.
December 28, 2018
Spacecraft spies ice-filled Mars crater
The Mars Express orbiter has taken some stunning photos of Korolev Crater, an ice-filled crater near the Martian north pole. It looks from a distance like a snowy winter landscape on Earth.
December 28, 2018
What does Ceres’ carbon mean?
Earlier this month, scientists announced that dwarf planet Ceres has more carbon-rich organics than previously thought, both on and below its surface. Here's why that's exciting.
December 27, 2018
A star is born
Take 2 minutes to learn about the life and death of a planetary system in this new video from NASA.
December 26, 2018
Eureka! Astronomers find a Big Bang fossil
Only 2 other fossil clouds are known in our universe, and both were serendipitous discoveries. Then astronomers began searching for these rare relics, and found one!
December 23, 2018
The case of the vanishing exoplanet
Astronomers have found an exoplanet - the 2nd of its kind now - that is gradually "evaporating" as its hydrogen atmosphere leaks away into space.
December 23, 2018
Goodbye to Saturn’s rings
Scientists have long said that Saturn's glorious rings may be only temporary. New research confirms a "ring rain" onto Saturn that'll leave the planet ringless in 300 million years, or sooner.
December 19, 2018
Comet gives birth to baby bow shock
And a spacecraft sees it happen! Rosetta spacecraft data reveals an infant bow shock - similar to what forms at the bow of a ship - at the comet this craft explored for 2 years. It's the 1st seen forming anywhere in our solar system.
December 19, 2018
1st image from inside sun’s atmosphere
NASA's Parker Solar Probe has now swept within the sun's corona, or outer atmosphere.. No other spacecraft has ever come this close to the sun's surface! And, it's going to get closer.
December 18, 2018
