樱桃视频

May 2, 2016

Outside the spacecraft: Smithsonian celebrates 50 years of spacewalks

The Smithsonian is inviting the public to take a stroll through half a century of spacewalks.

May 2, 2016

NASA honors Hubble's 25th anniversary with high-def version of iconic image

In honor of the telescope鈥檚 upcoming 25th anniversary in April, NASA has provided a clearer view of the celestial phenomenon, the "Pillars of Creation," with new high-definition images of the 鈥減illars鈥� that are being unveiled at this week鈥檚 American Astronomical Society meeting.

May 2, 2016

How NASA's next Mars rover will hunt for signs of past life

How habitable was Mars in the past?

May 2, 2016

The brightest planets in January's night sky: How to see them

The start of 2015 brings a new year of planet hunting for amateur astronomers around the world, and plenty of dazzling views of the planets await in January for the stargazer who knows where and when to look.

May 2, 2016

Alien oceans may flow on 'super-Earth' planets

SEATTLE 鈥� Alien worlds more massive than Earth could harbor long-lasting oceans, according to new research.

May 2, 2016

Are ocean asteroid impacts really a serious threat?

If a space rock were to hit the Earth at just the right location in the oceans, it could cause massive waves that could inundate U.S.

April 28, 2016

Surprise! Gigantic black hole found in cosmic backwater

One of the biggest black holes ever found sits in a cosmic backwater, like a towering skyscraper in a small town.

April 28, 2016

Minor lunar eclipse to darken part of Moon Wednesday: What to expect

Earth's shadow will darken part of the moon Wednesday morning in a lunar eclipse that will be visible from much of the globe, including central and western North America.

April 28, 2016

Leap day: The story behind this quirky calendar event

Monday is Feb. 29 鈥� the bissextle or "leap day," an artifact that dates back to the year 46 B.C. Back then, Julius Caesar took the advice of the learned astronomer Sosigenes of Alexandria, who knew from Egyptian experience that the tropical year (also known as the solar year) was about 365.25 days in length.

April 28, 2016

NASA's next great space telescope: The quest begins

The hunt is on!