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TESS discovers its 1st Earth-sized exoplanet
Launched in 2018, TESS is NASA's new space-based exoplanet hunter. Now it's found its 1st Earth-sized world orbiting a nearby star. The discovery bodes well, scientists say, for finding more similar worlds in the near future.
April 26, 2019
Listen to 1st-ever recorded marsquake
On April 6, NASA’s Mars InSight lander captured the 1st-ever audio of a likely “marsquake.”
April 25, 2019
Did an interstellar traveler hit Earth in 2014?
'Oumuamua - 1st known object to sweep past us from beyond our solar system - caused a stir when astronomers spotted it in 2017. Now a new study suggests another interstellar object might have hit the Earth in 2014.
April 25, 2019
Universe’s 1st type of molecule found at last
Scientists have detected the 1st type of molecule that ever formed in the universe - a combination of helium and hydrogen called helium hydride - in a planetary nebula near the constellation Cygnus.
April 24, 2019
Scientists find new surprises about Titan’s lakes
Cassini data now reveal that some of Titan's lakes are surprisingly deep.
April 23, 2019
One comet, 70 thousand images
Scientists released the OSIRIS Image Viewer to make the amazing images of comet 67P - acquired by the Rosetta spacecraft - easily accessible on the internet.
April 21, 2019
Closest rocky exoplanets could support life
Intense UV radiation from red dwarf stars was thought to make potentially habitable exoplanets unable to support life. But a new study of the 4 nearest rocky worlds suggests otherwise.
April 21, 2019
Moon’s south pole possible landing site
NASA hopes to send astronauts to the surface of the moon in 5 years, and has planned a landing site where no human has yet been: the lunar south pole.
April 18, 2019
The strange case of Mars’ disappearing methane
In 2013, in a big success story, a Mars rover and orbiter made a near-simultaneous observation of methane in Mars' atmosphere. Now a newer mission orbiting Mars - ESA's Trace Gas Orbiter - has failed to detect methane. Why?
April 17, 2019
Jumbo exoplanet discovered in double system with a dead star
The giant exoplanet - 13 times more massive than Jupiter - is the first yet found that orbits a binary star system in which 1 of the 2 stars is dead.
April 17, 2019
