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TRAPPIST-1 planets provide clues to habitable worlds
All 7 of the TRAPPIST-1 planets are Earth-sized and terrestrial, making them an ideal focus of study for planet formation and potential habitability.
March 25, 2018
Astronomers confirm source of galaxy-sized stream of gas
The Magellanic Stream - 300,000 light-years long - arches around our Milky Way. It's too faint and tenuous to study directly, so astronomers probed it by looking to distant quasars.
March 24, 2018
Ghost tracks
The Milky Way rising over the famous buried “ghost tracks” on the beach at Cape May, New Jersey.
March 24, 2018
Mars at western quadrature March 24
When Mars is at western quadrature in Earth's sky, Earth is at or near a greatest elongation - greatest distance from the sun on the sky's dome - as seen from Mars.
March 24, 2018
Find Vincent van Gogh’s Big Dipper
Here's an easy astronomy lesson, from a master in the art of loving nature.
March 23, 2018
Did Scholz’s star invade the Oort Cloud?
Scholz´s star - named for its discoverer - is now 20 light-years away. But astronomers say they've verified a flyby of this star 70,000 years ago that disturbed comets in the Oort Cloud.
March 22, 2018
Did huge volcanoes lead to oceans on Mars?
A new study links oceans on ancient Mars to the rise of the planet's Tharsis volcano system, home to the largest volcanoes in our solar system.
March 22, 2018
Mars passes the Lagoon and Trifid
Mars is now brightening dramatically and making a beeline through many constellations. Astrophotographer Muzamir Mazlan in Malaysia caught it sweeping between the Lagoon and Trifid nebulae.
March 22, 2018
Jupiter’s Red Spot gets taller as it shrinks
Scientists have noticed that Jupiter's Great Red Spot has been getting smaller over time. New evidence says the storm is getting taller - and more orange - as it shrinks.
March 21, 2018
