Astro Watch 13 Sep 2019, 23:11 UTC The topography of Titan, the largest of moon of Saturn, seems serene in Cassini mission images, but lakes of liquid methane that pock the landscape were likely formed by explosive, pressurized nitrogen just under the moon’s crusty surface, according to research published Sept. 9 in Nature Geoscience.
The Planetary Society Blog 13 Sep 2019, 16:22 UTC It’s looking likely that a newly discovered comet is actually an interstellar interloper from beyond our solar system.
Forbes articles by Brian Koberlein 13 Sep 2019, 15:59 UTC Periodic x-ray flares give clues about how black holes eat.
Physics World Blog 13 Sep 2019, 14:39 UTC An unusual set of chemical fingerprints spotted in the light from a distant star could be the remnants of a digested planet, according to a new study by researchers in Sweden. In 2017 astronomers making spectroscopic observations of several stars in the open star cluster Messier 67 spotted one – dubbed Y2235 – with elevated levels of certain elements on its “surface”. These included carbon, magnesium and oxygen as well as heavier elements such as cerium, iron and yttrium.
SPACE.com 13 Sep 2019, 12:03 UTC Astronomers have discovered a bright, young star that is running away from home. Why? What did the star's parents do to deserve this? According to a study published Aug. 6 in the journal Astronomy & Astrophysics, it's nobody's fault; it seems the young star simply fell in with the wrong crowd — namely, a very hungry black hole.
Astronaut.com 13 Sep 2019, 11:15 UTC If you could pack a hot air balloon onto an interstellar spaceship and travel 110 light years to a certain planet orbiting a dim star in the constellation Leo, you’d have an experience not entirely unlike ballooning on Earth. The temperature, pressure, and moist air could feel quite pleasant, though you’d need an oxygen mask—and possibly an umbrella.
Universe Today 13 Sep 2019, 07:33 UTC Hubble has captured a new image of Saturn that makes you wonder if it’s even real. The image is so crisp it makes it look like Saturn is just floating in space. Which it is. This image of the ringed-planet was captured when Saturn was at its closest to Earth, some 1.36 billion km away (845 million miles) on June 20th, 2019. The crisp image was captured with Hubble’s Wide Field Camera 3 (WFC3.)
Universe Today 13 Sep 2019, 07:22 UTC Astronomers have found a supermassive black hole (SMBH) with an unusually regular feeding schedule. The behemoth is an active galactic nucleus (AGN) at the heart of the Seyfert 2 galaxy GSN 069. The AGN is about 250 million light years from Earth, and contains about 400,000 times the mass of the Sun.