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Editors of EarthSky

Monster stars mystery cracked by astronomers

Astronomers found four monster stars, one more than 300 times the mass of our sun. They were created from the merger of lighter stars in tight binary systems.

Updated times for Voice of America broadcasts of EarthSky in Asia

EarthSky airs on international editions of Voice of America Daybreak Asia and Crossroads Asia. Check this post for updated broadcast times.

Research links extreme summer heat events to global warming

Scientists have found that Earth's land areas are much more likely to experience an extreme summer heat wave than they were in the middle of the 20th century.

Mars tugging on approaching Curiosity rover

The gravitational tug of Mars is now pulling in NASA's car-size geochemistry laboratory, Curiosity, for a suspenseful landing in less than 40 hours.

Here’s why we sneeze, says new research

Your sneeze is a biological 'reboot' say researchers. Read here "why we sneeze".

Have you seen this new image of galaxy NGC 1187?

An amazing image of a spiral galaxy NGC 1187 that lies about 60 million light-years away in the constellation of Eridanus (The River).

People with allergies may have lower risk of brain tumors

Research adds to the growing body of evidence that there’s a link between allergies and reduced risk of a serious type of cancer that starts in the brain.

Video: The biomechanics of a perfect dive

A scientist who's helped elite athletes prepare for the Olympics explains the anatomy of the perfect dive. Watch the video here.

Vaporizing the Earth

Simulations of vaporizing the Earth or other planets tell planet-hunting astronomers what to look for in the atmospheres of candidate super-Earths.

Curiosity mission could reveal Mars’ deepest secrets

Clues to Mars’ hidden past and what may have happened to its long-ago vanished rivers, and perhaps even oceans may be revealed when NASA’s Curiosity lands on Mars.