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Scientists find Earth-sized rocky exoplanet
With a radius about 1.2 times that of Earth and a mass equal to about 1.7 times Earth’s, Kepler-78b has a density that's the same as Earth’s, suggesting that it is also made primarily of rock and iron.
October 30, 2013
Hummingbird memory
New research suggests the tiny birds may have what might be called an episodic memory – a trait previously thought unique to humans.
October 30, 2013
Russian missile contrail
A Russian missile contrail yanked back and forth by winds at different heights of our atmosphere.
October 30, 2013
First-ever deep space craft, Orion, powered up
The Orion spacecraft - planned to carry astronauts on missions beyond low-Earth orbit - has been powered on for the first time at Kennedy Space Center in Florida.
October 29, 2013
First-ever evidence of a comet strike on Earth
When it exploded in Earth's atmosphere, the comet rained down a shock wave of fire that obliterated every life form in its path.
October 29, 2013
This date in science: Hurricane Sandy hits U.S. Northeast
Hurricane Sandy affected millions of lives and became the second-costliest storm to hit the U.S., with damage totals estimated around $65 billion dollars.
October 29, 2013
Will a box like this someday bring back samples from Mars?
Still probably many years in the future and most likely international in nature, a Mars sample-return mission is one of the most challenging space ventures possible for robotic exploration.
October 29, 2013
See Comet ISON move in front of the stars
Justin Ng in Singapore acquired this time-lapse video of Comet ISON - this year's most-watched comet - over 69 minutes on October 27, 2013.
October 29, 2013
Savage windstorm kills at least 13 in Europe
The powerful windstorm across northern Europe on Monday was one of the worst storms to hit the region in years.
October 29, 2013
Heat from the lava flows at Klyuchevskaya
A recently released NASA image of the ongoing 2013 eruption at Klyuchevskaya, one of Russia’s tallest and most active volcanoes.
October 29, 2013
