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’s 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 “pillars” that are being unveiled at this week’s 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 — 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 — 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.