The Large Magellanic Cloud, our galactic neighbor

The Large Magellanic Cloud is a petite galaxy visible with the unaided eye – all year round – for those in the Southern Hemisphere. This small neighboring galaxy to the Milky Way is somewhere between spiral and irregular in shape. Source: https://earthsky.org/clusters-nebulae-galaxies/the-large-magellanic-cloud…

Images reveal where lava broke through the wall of a Martian crater and began filling it up

At a fundamental level, Mars is a volcanic planet. Its surface is home to the solar system’s largest extinct volcano, Olympus Mons, and another trio of well-known volcanoes at Tharsis Montes. And those are just the highlights: there are many other volcanoes on the surface. Though that volcanic activity ceased long ago, the planet’s surface tells the tale of a world…

Does Jupiter’s moon Europa have geysers? If so, what’s their source?

If watery plumes do burst from Europa’s surface, they might originate not in the moon’s underground ocean, but instead in pockets of brine trapped in the moon’s crust. If that’s so, it could be a source of frustration for those who want to probe Europa’s ocean for possible life. Source: https://earthsky.org/space/jupiter-moon-europa-plumes-salty-water-in-crust…

How Jupiter’s moon Io gets its hellish atmosphere

Hot, active volcanoes produce almost half of Jupiter’s moon Io’s sulfur atmosphere, according to new observations using the ALMA telescope. The rest comes from cold sulfur deposits that freeze on the surface, then sublimate in sunlight. Source: https://earthsky.org/space/io-sulfur-volcanoes-hot-so2-cold-so2…

Is Iceland’s most active volcano about to erupt?

The ice-covered Grímsvötn volcano produced an unusually large and powerful eruption in 2011. Now, says this volcanologist, there are clear signs that Grímsvötn is getting ready to erupt again. Source: https://earthsky.org/earth/grimsvotn-iceland-volcano-about-to-erupt…