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Editors of EarthSky
Ceres’ bright spots likely salt deposits
Mystery solved? Bright spots seen by Dawn spacecraft on dwarf planet Ceres are likely salt deposits, say researchers.
December 10, 2015
Satellite sensors for global fire coverage
A global fire alert from space, FireSat sensors would be able to detect a fire anywhere on Earth within 15 minutes of its start and notify area emergency responders.
November 27, 2015
Mars to lose a moon, gain a ring
Mars’ large moon Phobos is slowly falling toward the planet. In 20-40 million years, it'll shatter, and its pieces will form a Saturn-like ring around Mars.
November 26, 2015
Tiny, ultracool star is super stormy
"If we lived around a star like this one, we wouldn't have any satellite communications. In fact, it might be extremely difficult for life to evolve at all ..." said Harvard astrophysicist.
November 20, 2015
Most Earthlike exoplanet is uninhabitable
Kepler-438b - 470 light years from Earth - ranks highest on the Earth Similarity Index. But radiation from its violent parent star makes it uninhabitable.
November 18, 2015
Mars rover heads for active dunes
No Mars rover has yet visited a sand dune, as opposed to smaller sand ripples or drifts. Curiosity will visit actual Mars dunes in the next few days.
November 17, 2015
Video: Why your body is amazing
Some fun for a Friday, from the guys at AsapScience.
November 13, 2015
An ocean in the sky
The star Fomalhaut shines in lonely splendor on these November evenings. Look south from the Northern Hemisphere - more overhead from the Southern Hemisphere. The region of the sky around Fomalhaut is known as a celestial ocean.
November 7, 2015
Solar wind likely stripped Martian atmosphere
Mars was once warm and wet, say scientists. But most of the water from its atmosphere was likely stripped away by solar winds.
November 6, 2015
