Comets
Solid Phosphorus has been Found in Comets. This Means They Contain All the Raw Elements for Life
Did comets deliver the elements essential for life on Earth? It's looking more and more like they could have. At…
One of the Building Blocks of Life Can Form in the Harsh Environment of Deep Space Itself. No Star Required
In many ways, stars are the engines of creation. Their energy drives a whole host of processes necessary for life.…
Even Comets Can Have Auroras. Comet 67P/Churyumov-Gerasimenko Does
The ESA's Rosetta mission to Comet 67P/Churyumov-Gerasimenko ended four years ago. On September 30th 2016 the spacecraft was directed into…
Rosetta’s Philae Lander Was Alive on the Surface of 67P for 63 Hours, Trying to Communicate
In August 2014, the ESA's Rosetta spacecraft arrived at its destination, Comet 67P/Churyumov-Gerasimenko, after a 10 year journey. Rosetta carried…
Comet NEOWISE Was Spiraling and Spinning as it Passed by Earth
Earlier this week, we shared an image of Comet NEOWISE (C/2020 F3) taken by the Hubble Space Telescope. And now,…
Everyone Took Pictures of Comet NEOWISE, Including Hubble
This summer we were (finally) treated to a spectacular, naked-eye comet, C/2020 F3 NEOWISE. And while seeing it with our…
Organic Matter Could Have Delivered Earth’s Water
The origin of Earth's water is a big piece of the puzzle in Earth's history. Did it come from comets…
Parker Solar Probe Gives a Unique Perspective on Comet NEOWISE
Comet watchers have enjoying the newly-discovered NEOWISE comet since it was first spotted in March 2020. Now that it's visible…
Finally! We’ve got a comet that’s visible to the unaided eye. Comet C/2020 F3 NEOWISE
Look up! A rare naked-eye comet, C/2020 F3 (NEOWISE), is now visible to the unaided eye. But act fast -…
Interstellar Comet 2I/Borisov Formed in a Very Cold Environment
Using the ALMA array, astronomers were able to detect the chemical composition of an interstellar object as 2I/Borisov began releasing…