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NASA has re-scheduled its ‘flying saucer’ test flight

On Tuesday, NASA was going to drop a flying-saucer-shaped vehicle from a helium balloon high above Earth's surface, in preparation for future Mars missions. But the test has been delayed, due to weather.

Editors of EarthSky

June 3, 2014

Asteroids that buzz Earth

Cool infographic showing asteroids that will come closest to Earth in the next 200 years.

Deborah Byrd

June 3, 2014

See three planets tonight

Jupiter, Mars, Saturn can all be seen easily on these June evenings.

Deborah Byrd

Bruce McClure

June 3, 2014

Watch online Tuesday as asteroid passes at moon’s distance

Asteroid 2014 KH39 will pass just outside the moon's distance on Tuesday, June 3, at around 3 p.m. CDT (20 UTC). Watch live via the Virtual Telescope Project.

Deborah Byrd

June 3, 2014

Two planets destined to die as their star expands

You know how our sun will someday swell to a red giant, swallowing the planets Mercury and Venus? These two distant exoplanets will suffer a similar fate.

David Callejas

June 2, 2014

Kepler-10 star system has a mega-Earth!

Astronomers believed a rocky world with 17 times Earth's mass couldn't form. But now they have discovered one.

Editors of EarthSky

June 2, 2014

Diamond planets more common than astronomers thought?

Study suggests that extraterrestrial worlds can be extremely diverse in their chemical compositions, including many that are drastically different from our earthly experience.

David Callejas

May 28, 2014

Habitable environment on Martian volcano?

A volcano erupting under an immense glacier would have created large lakes of liquid water on Mars in the relatively recent past. And where there’s water, there's the possibility of life.

David Callejas

May 28, 2014