How did early Earth’s hydrogen and oxygen come from?
Molecular oxygen (O2) is essential for respiration on today's Earth, but the early atmosphere was almost devoid of oxygen until the Great Oxidation Event.
How...
Was Venus ever habitable? New UChicago study casts doubt
A new study from the University of Chicago argues there is little chance the planet Venus was ever habitable.
Could ‘terminator zones’ on far off planets harbor life?
Extraterrestrial life has the potential to exist on distant exoplanets inside special areas called “terminator zones”.
Scientists discover remnants of relict glacier near the equator on Mars
If there is still water ice preserved at shallow depths at a low latitude on Mars, there would be implications for science and human...
NASA study reveals map of moon’s water near its south pole
A new study using the now-retired Stratospheric Observatory for Infrared Astronomy (SOFIA) has pieced together the first detailed, wide-area map of water distribution on...
Galaxies were different in the early universe, finds study
The earliest stars, which may have formed around 200 million years after the Big Bang, contained few other elements than hydrogen and helium.
New study reveals new insights on binary star systems
Scientists have long been intrigued by X-ray binary star systems, where two stars orbit around each other with one of the two stars being...
Can cosmic collisions be predicted before they happen
On August 17, 2017, around 70 telescopes collectively turned their gaze to a fiery collision between two dead stars that took place millions of...
Strange green lines above Hawaii was probably a Chinese satellite
Every once in a while, the stars (or, in this case, satellites) align, and keen observers can receive an unexpected light show.
That happened a...
Astronomers find missing link for water in the Solar System
Astronomers have detected gaseous water in the planet-forming disc around the star V883 Orionis with the ALMA.