Water makes up 71% of Earth's surface, but no one knows how or when such massive quantities of water arrived on Earth.
Planetary Sciences
Mar 15, 2023
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975
Astronomers report the discovery of two new exoplanets orbiting a bright sun-like star about 175 light years away. The newfound alien worlds, designated HIP 104045 b and HIP 104045 c, were classified as a Jupiter analog and ...
Today Venus has a dry, oxygen-poor atmosphere. But recent studies have proposed that the early planet may have had liquid water and reflective clouds that could have sustained habitable conditions. Researchers at the University ...
Scientists studying a nearby protostar have detected the presence of water in its circumstellar disk. The new observations made with the Atacama Large Millimeter/submillimeter Array (ALMA) mark the first detection of water ...
Planetary Sciences
Mar 8, 2023
0
109
An international team of astronomers reports the discovery of a new gas giant exoplanet using NASA's Transiting Exoplanet Survey Satellite (TESS). The newfound alien world, designated TOI-3235 b is the size of Jupiter and ...
NASA's Double Asteroid Redirection Test (DART) was Earth's first attempt at launching a spacecraft to intentionally collide with and deflect an asteroid as a planetary defense technique. On September 26, 2022, the DART spacecraft ...
Astronomy
Mar 1, 2023
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113
Asteroid Ryugu has a rich complement of organic molecules, according to a NASA and international team's initial analysis of a sample from the asteroid's surface delivered to Earth by Japan's Hayabusa2 spacecraft. The discovery ...
Planetary Sciences
Feb 23, 2023
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633
Astronomers report the detection of two new gas giant exoplanets using NASA's Transiting Exoplanet Survey Satellite (TESS). The newfound alien worlds, designated TOI-3984A b and TOI-5293A b, have very short orbital periods. ...
There is a mystery in our solar system surrounding the orbits of Kuiper belt objects. More than one trillion icy objects smaller than our moon orbit the sun in a donut-shaped ring beyond Neptune. Oddly, a cluster of outer ...
The red streaks crisscrossing the surface of Europa, one of Jupiter's moons, are striking. Scientists suspect it is a frozen mixture of water and salts, but its chemical signature is mysterious because it matches no known ...
Planetary Sciences
Feb 20, 2023
0
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