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Science Release: Hubble Explores the Formation and Evolution of Star Clusters in the Large Magellanic CloudNext Previous
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29 Aug 2019, 08:10 UTC A rocky extrasolar moon (exomoon) with bubbling lava may orbit a planet 550 light-years away from us. This is suggested by an international team of researchers led by the University of Bern on the basis of theoretical predictions matching observations. The “exo-Io” would appear to be an extreme version of Jupiter’s moon Io.Artist’s composition of a volcanic exo-Io undergoing extreme mass loss. The hidden exomoon is enshrouded in an irradiated gas cloud shining in bright orange-yellow, as would be seen with a sodium filter. Patches of sodium clouds are seen to trail the lunar orbit, possibly driven by the gas giant’s magnetosphere. (Illustration Thibaut Roger/University of Bern)Jupiter’s moon Io is the most volcanically active body in our solar system. Today, there are indications that an active moon outside our solar system, an exo-Io, could be hidden at the exoplanet system WASP-49b. “It would be a dangerous volcanic world with a molten surface of lava, a lunar version of close-in Super Earths like 55 Cancri-e” says Apurva Oza, postdoctoral fellow at the Physics Insitute of the University of Bern and associate of the NCCR PlanetS, “a place where Jedis go to die, perilously familiar to Anakin Skywalker.” But the object that ... Next Previous
27 Aug 2019, 19:08 UTC NASA launched its Spitzer Space Telescope into orbit around the Sun on Aug. 25, 2003. Since then, the observatory has been lifting the veil on the wonders of the cosmos, from our own solar system to faraway galaxies, using infrared light. Next Previous
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Harvard-Smithsonian Center for Astrophysics 20 Sep 2019, 15:48 UTC The National Science Foundation has just announced the award of a $12.7M grant to architect and design a next-generation Event Horizon Telescope (ngEHT) to carry out a program of transformative black hole science.
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Gateway into Inner Solar System Discovered, Finding May Alter Fundamental Understanding of Comet Evolution20 Sep 2019, 14:32 UTC A new study may fundamentally alter our understanding of how comets arrive from the outskirts of the solar system and are funneled to the inner solar system coming closer to Earth.
NASA's Goddard Space Flight Center 20 Sep 2019, 13:27 UTC Many of the best-loved galaxies in the cosmos are remarkably large, close, massive, bright, or beautiful, often with an unusual or intriguing structure or history. However, it takes all kinds to make a universe — as demonstrated by this Hubble image of Messier 110.
Europlanet Research Infrastructure 19 Sep 2019, 12:08 UTC Studies of the cloud-tops of Venus by JAXA’s Akatsuki spacecraft show striking variety in wind speeds year-on-year and between the planet’s northern and southern hemispheres. The first fine-scale observations of cloud-top temperatures have also revealed a tendency for clouds to converge towards the equator at night, in contrast to poleward circulation seen previously in daytime studies.
NASA's Jet Propulsion Laboratory News and Features 18 Sep 2019, 15:09 UTC It's the final boarding call for you to stow your name on NASA's Mars 2020 rover before it launches to the Red Planet. The Sept. 30 deadline for NASA's "Send Your Name to Mars" campaign gives the mission enough time to stencil the submitted names - over 9.4 million so far - on a chip that will be affixed to the Mars 2020 rover.
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Universe Today 24 Sep 2019, 07:59 UTC A new image from the ESA’s Mars Express Orbiter shows exactly how different regions in Mars are from one another. From the cloudy northern polar region all the way to the Helles Planitia down in the south, Mars is a puzzle of different terrain types. At the heart of it all is what’s known as the Martian dichotomy.
Universe Today 23 Sep 2019, 20:09 UTC Messier 110 (NGC 205) is a satellite of the Andromeda Galaxy. It’s a dwarf elliptical galaxy, a common type of galaxy often found in galaxy clusters and groups, and it contains about 10 billion stars. Like all dwarf ellipticals, it doesn’t have the characteristic shape of galaxies like Andromeda or the Milky Way, with their vast, spiral arms. It has a smooth, featureless shape.
New Scientist 23 Sep 2019, 16:41 UTC A pair of strange galaxies seem to defy our standard model of cosmology. We can’t pin down how far away they are, but both probable distances come with problems. If they are relatively distant, they appear to have clusters of stars that are brighter than any seen before. If they are closer, then it looks like they are moving far too fast.
EarthSky Blog 23 Sep 2019, 11:55 UTC Tabby’s Star – aka KIC 8462852 or Boyajian’s Star – has been fascinating astronomers and the public alike for the past few years now, with its weird abrupt dimmings in brightness. Theories have ranged from comets to black holes to alien megastructures to explain the odd dips. On September 16, scientists at Columbia University said they have come up with yet another possibility: a melting exomoon.