Comets
More Than Half of Near Earth Objects Could Be “Dark Comets”
Next time you're visiting the seaside or a large lake, or even sipping a frosty glass of water, think about…
A Weather Satellite Watched a Space Rock Burn Up Above Spain and Portugal
It's been a momentous May for skywatchers around the world. First the big auroral event of May 10-11, next a…
Someone Just Found SOHO's 5,000th Comet
The Solar and Heliospheric Observatory (SOHO) was designed to examine the Sun, but as a side benefit, it has been…
Comets: Why study them? What can they teach us about finding life beyond Earth?
Universe Today has explored the importance of studying impact craters, planetary surfaces, exoplanets, astrobiology, and solar physics, and what this…
A Star Passed Through the Oort Cloud Less Than 500,000 Years Ago. It Wasn’t the Only One.
As stars in the Milky Way move through space, some of them have an unexpected effect on the Solar System.…
Some of the Moon's Craters are From Interstellar Impacts. Can We Tell Which?
By discovering two interstellar objects (ISOs), we know that asteroids and comets from other star systems pass through the Solar…
JWST Finds a Comet Still Holding Onto Water in the Main Asteroid Belt
Comets are instantly recognizable by their tails of gas and dust. Most comets originate in the far, frozen reaches of…
Here's How NASA is Planning to Protect Earth From Asteroids and Comets
The large impact craters dotting our planet are powerful reminders that asteroids and comets strike the Earth from time to…
Why Does ‘Oumuamua Follow Such a Bizarre Orbit? Hydrogen Outgassing
Nothing excites space enthusiasts like a good alien mystery. The interstellar visitor 'Oumuamua presented one as it moved through the…
Spectacular Images of the Rare ‘Green Comet’ Gracing Our Skies
A rare ‘green’ comet is passing through our Solar System and astrophotographers have been out capturing photos. While this comet,…