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Posts by
Editors of EarthSky
Using light to understand rogue waves
They're not tsunamis, but they can be dangerous to ships. They're gigantic ocean waves, seeming to appear out of nowhere. New research may help predict them.
February 15, 2016
Merging galaxies in Eridanus, via Hubble
Characterized as a peculiar galaxy, NGC 1487 is an elaborate cosmic whirl likely formed when several dwarf galaxies merged.
February 13, 2016
Is El Niño at its peak?
This year's El Niño has likely reached its peak, say scientists, but given that Earth is hotter than in 135 years, there are no guarantees.
January 27, 2016
View from space: Mississippi River flooding
Two satellite images show the contrast between the flooded Mississippi River this month and the same area last year. Check out the difference!
January 20, 2016
Newly discovered most luminous galaxy
Galaxy W2246-0526 shines with the intensity of more than 300 trillion suns. Its central black hole stirs up gas across the entire galaxy.
January 18, 2016
Why does the new year begin on January 1?
New Year's Day is a civil event. Its date isn't precisely fixed by any natural seasonal marker.
January 1, 2016
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
