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space

Earth-like exoplanet shows signs of supporting life

A recently discovered exoplanet 40 light-years from Earth appears to orbit its home star at a distance suggesting it could support liquid water. The planet, dubbed LHS 1140b and reported in a study in Nature, is located in the constellation Cetus and orbits a red dwarf star. The rocky planet is 10 times closer to its star than Earth is to the sun, but the red dwarf only puts out a fraction of the light that the sun does, meaning LHS 1140b lies in the middle of the habitable zone around the star.

24 Jul 2017

Benchmarks: July 15-24, 1975: Apollo-Soyuz mission launches space collaboration

The space race between the United States and the Soviet Union spurred innovations and historic firsts for humankind from Sputnik to the moon landing. However, much of the drive to break through those technological barriers and explore the vast, starry landscape of space was rooted in a desire to display military dominance in space amid the competition and animosity of the Cold War.

15 Jul 2017

Martian channels carved by lava, not water?

A complex system of river-like channels on Mars widely thought to have been formed by flowing water could instead have been carved by a huge lava flow, according to a new study. The findings could affect our understanding of how supportive Mars might have been for life in the past.

29 Jun 2017

Ceres' homemade organic materials

Researchers analyzing data from NASA’s Dawn spacecraft have found signs of organic compounds that arose on the surface of Ceres, a dwarf planet one-fourth the diameter of our moon in the asteroid belt between Mars and Jupiter. The compounds’ origins may provide clues about how life on Earth got started.

09 Jun 2017

Red Planet Roundup: June 2017

With two rovers patrolling the surface of Mars, six spacecraft orbiting above it, and scientists here on Earth studying the Red Planet from afar, new findings are announced often. Here are a few of the latest updates.

08 Jun 2017

Benchmarks: May 23, 1967: Space weather forecasters avert war

In spring 1967, international political tensions were high. The United States and the Soviet Union were engaged in the space race, as well as a nuclear arms race. The Cuban Missile Crisis, less than five years earlier, was still fresh in people’s minds. The war in Vietnam was escalating, as was the U.S. antiwar movement at home. And in the Middle East, Israel and its neighbors were on the precipice of the Six Day War.

23 May 2017

Mountains may cause huge waves in Venusian clouds

An enormous, stationary, bow-shaped feature has been detected in the cloud-tops of Venus’ thick, sulfuric acid-rich atmosphere. The structure, stretching more than 10,000 kilometers, remains fixed over Venus’ surface despite atmospheric winds that whip around the planet at 100 meters per second.

03 May 2017

And then there was one: Ceres' disappearing ice volcanoes

Earth has numerous volcanoes, both active and extinct — some of which continue to tower over landscapes long after they finished erupting. On the chilly dwarf planet Ceres, however, scientists have identified just a single volcano — an ice-erupting cryovolcano — raising questions about whether others ever existed there and, if so, what happened to them. In a new study, researchers suggest that Ceres has likely had other volcanoes, but that, over time, their icy slopes have been flattened beyond recognition.

28 Apr 2017

Benchmarks: April 24, 1990: The Hubble Space Telescope is launched

Five hundred and eighty kilometers above Earth, orbiting at more than 27,000 kilometers per hour, is a 12-ton, bus-sized eye on the universe: the Hubble Space Telescope. When Hubble launched aboard the space shuttle Discovery on April 24, 1990, scientists hoped it would provide answers to many of the great unknown questions of the day. How old is the universe? How fast is it expanding? What lies between galaxies?

24 Apr 2017

Red Planet Roundup: April 2017

With two rovers patrolling the surface of Mars, six spacecraft orbiting above it, and scientists here on Earth studying the Red Planet from afar, new findings are announced often. Here are a few of the latest updates.

 
14 Apr 2017

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