Latest about comets
Newfound Comet ATLAS is getting really bright, really fast
For years, amateur astronomers have been waiting for a bright, naked-eye comet to pass by Earth — and finally, such an object may have arrived.
Rosetta's 'rubber ducky' comet changed color as it neared the sun. Here's why.
As Rosetta's comet got near enough to the sun for frost to evaporate off its surface, a color-changing water and dust cycle began that shuffled its colors around.
Physicists: Ancient life might have escaped Earth and journeyed to alien stars
A pair of researchers presented a wild new theory in a new paper.
Astronomers See Stars Slinging Comets at Earth for the First Time
For the first time, a Polish group has identified two nearby stars that seem to have plucked up their icy partners, swinging them into orbits around our sun.
2nd Interstellar Comet Looks Pretty Normal, Astronomers Say
Observations of the interstellar Comet Borisov have been flooding in for six weeks, and the more astronomers duplicate one another's work, the more confident they are in their analysis of the object.
2nd-Known Interstellar Visitor May Have Breezed Through Our Solar System
A bright speck in the night sky may be the second known object to hurtle through our solar system after leaving another.
Nature Could Have Created Oddball 'Oumuamua, Not Aliens
The debate about 'Oumuamua's nature and origin continues.
