Comets

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.…

8 hours ago

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…

2 months ago

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…

3 months ago

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,…

3 months ago

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…

3 months ago

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…

4 months ago

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…

4 months ago

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 -…

5 months ago

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…

7 months ago

When Comets Break Up, the Fragments Can Be Devastating If They Hit the Earth

Comet breakups are a timely topic right now. The interstellar comet 2I/Borisov just broke into at least two pieces. And…

7 months ago