Jet! Rosetta’s Comet Is Feeling The Heat As Gas and Dust Erupts From Surface

Get a load of those streaks! Rosetta’s comet is picking up in activity as it moves ever closer to the Sun, sending out a steady stream of gas and dust captured in this image released today (Nov. 26). It’s also possible that there might be an “atmosphere” developing around the comet, although the images aren’t clear on if that’s an artifact of Rosetta itself.

As the European Space Agency scurries to find the final resting place of the Philae lander, Rosetta continues normal operations above the comet and will keep tracking it through 2015. Rosetta is the first orbiter to stick around near a comet, which will allow scientists an unprecedented chance to see a comet change from up close as the Sun’s heat and particles affect it. Could there be an atmosphere starting up?

“At the bottom of the mosaic, the non-illuminated part of the comet stands out as a silhouette against the broader diffuse emission coming from the comet’s coma,” ESA stated. “There are hints of a diffuse ‘atmosphere’ close to the surface of the comet seen along the illuminated edges, but this could be due to scattering in the NAVCAM optics. The large number of small white blobs in the image are likely specks of dust or other small objects in the vicinity of the comet.”

Here’s the same image below, but slightly oversatured to bring out those streaks. It’ll be fun to see the changes at 67P over the next few months, and ESA is still holding out hope that Philae will wake up in a few months once enough sunlight reaches its shady spot. If that happens, scientists can then get an extreme close-up of 67P’s activity as well.

Source: European Space Agency

A mosaic of Comet 67P/Churyumov–Gerasimenko taken by the Rosetta spacecraft Nov. 20, with more exposure and contrast to bring out jets erupting from the comet’s surface. Credit: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0
Elizabeth Howell

Elizabeth Howell is the senior writer at Universe Today. She also works for Space.com, Space Exploration Network, the NASA Lunar Science Institute, NASA Astrobiology Magazine and LiveScience, among others. Career highlights include watching three shuttle launches, and going on a two-week simulated Mars expedition in rural Utah. You can follow her on Twitter @howellspace or contact her at her website.

Recent Posts

The First Close-Up Picture of Star Outside the Milky Way

Like a performer preparing for their big finale, a distant star is shedding its outer…

6 hours ago

Here’s What We Know About Earth’s Temporary Mini-Moon

For a little over a month now, the Earth has been joined by a new…

8 hours ago

New Study Suggests Black Holes Get their “Hair” from their Mothers

Despite decades of study, black holes are still one of the most puzzling objects in…

9 hours ago

Gaze at New Pictures of the Sun from Solar Orbiter

74 million kilometres is a huge distance from which to observe something. But 74 million…

9 hours ago

Are Fast Radio Bursts Caused by Interstellar Objects Crashing Into Neutron Stars?

Astronomers have only been aware of fast radio bursts for about two decades. These are…

14 hours ago

Here’s How to Weigh Gigantic Filaments of Dark Matter

How do you weigh one of the largest objects in the entire universe? Very carefully,…

16 hours ago