ScienceDaily: Astronomy News |
- Ocean on Saturn's moon Titan could be as salty as Earth's Dead Sea
- Black hole fireworks in nearby galaxy
- Martian salts must touch ice to make liquid water, study shows
- Reinterpreting dark matter: Could dark matter be regarded as a very cold quantum fluid?
- A stellar womb shaped and destroyed by its ungrateful offspring
| Ocean on Saturn's moon Titan could be as salty as Earth's Dead Sea Posted: 02 Jul 2014 01:55 PM PDT Scientists analyzing data from NASA's Cassini mission have firm evidence the ocean inside Saturn's largest moon, Titan, might be as salty as Earth's Dead Sea. The new results come from a study of gravity and topography data collected during Cassini's repeated flybys of Titan during the past 10 years. Using the Cassini data, researchers presented a model structure for Titan, resulting in an improved understanding of the structure of the moon's outer ice shell. |
| Black hole fireworks in nearby galaxy Posted: 02 Jul 2014 01:53 PM PDT Celebrants this Fourth of July will enjoy the dazzling lights and booming shock waves from the explosions of fireworks. A similarly styled event is taking place in the galaxy Messier 106, as seen by NASA's Spitzer Space Telescope, Chandra X-ray Observatory and the Herschel Space Observatory. Herschel is a European Space Agency mission with important NASA contributions. |
| Martian salts must touch ice to make liquid water, study shows Posted: 02 Jul 2014 10:16 AM PDT In chambers that mimic Mars' conditions, researchers have shown how small amounts of liquid water could form on the planet despite its below-freezing temperatures. Liquid water is an essential ingredient for life as we know it. Mars is one of the very few places in the solar system where scientists have seen promising signs of it -- in gullies down crater rims, in instrument readings, and in Phoenix spacecraft self portraits that appeared to show wet beads on the lander's leg several years ago. |
| Reinterpreting dark matter: Could dark matter be regarded as a very cold quantum fluid? Posted: 02 Jul 2014 06:23 AM PDT Astronomers have explored cold dark matter in depth and proposes new answers about the formation of galaxies and the structure of the Universe. These predictions are being contrasted with fresh data provided by the Hubble space telescope. It is estimated that only a minute fraction of the matter in the Universe is baryonic matter, which forms stars, planets and living organisms. The rest, comprising over 80%, is dark matter and energy. |
| A stellar womb shaped and destroyed by its ungrateful offspring Posted: 02 Jul 2014 06:23 AM PDT The little-known cloud of cosmic gas and dust called Gum 15 is the birthplace and home of hot young stars. Beautiful and deadly, these stars mould the appearance of their mother nebula and, as they progress into adulthood, will eventually also be the death of her. |
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