Astronomers observe ancient merger of two huge galaxies
Dust and 12.7-billion-year distance makes these galaxies impossible to observe in visible light.
Regular variations in brightness of young star could be caused by an orbiting planet
New sub-millimeter radio astronomy technology provides window into star and planet formation.
Star remains alive after multiple supernova explosions
Discovery may be a completely new type of object.
Scientists find 20 more potentially habitable exoplanets from Kepler data
Discoveries bring number of known habitable Earth-like worlds to 50.
Brown dwarf in low-mass binary system caused companion star's premature death
Scientists view binary systems as crucial to their understanding of stellar life cycles.
Rosetta data sheds light on planet formation process
Study confirms dust pebbles combine to form larger bodies, such as comets and planets.
Auroras at Jupiter's poles act independently
Researchers take advantage of rare opportunity to observe polar regions through Juno mission and space telescopes.
Debris disks of comets are coming together to form exoplanets
Planets are forming from multiple sites instead of growing from just one site.
Drawing reveals white solar flare observed in 1886
Nature of teen's observation wasn't recognized until now.
Astronomers discover extremely luminous nova
First nova ever found in Small Magellanic Cloud is studied in multiple wavelengths.
Autonomous robotic telescopes observe blazars and other extreme astronomical phenomena
As many as 10,000 images of these remote high-energy phenomena are imaged every week, then processed via machine learning.
Belt of asteroids found orbiting binary star system
Discovery raises possibility of Earth-like planets orbiting two stars.
Newly spotted asteroid passed between Earth and moon on Feb. 2
A bus-sized asteroid will fly between Earth and the moon on Feb. 2.
Scientists find source of mystery fast radio bursts
Astronomers have pinpointed the source of a series of fast radio bursts coming from a galaxy 2.5 billion light years away.
Five naked-eye planets to align in early morning sky for a month