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|Astronomy News -- ScienceDaily|
Updated : Mon, 25 Jul 2016 13:11:25 EDT
Space... the final frontier
Fifty years ago Captain Kirk and the crew of the starship Enterprise began their journey into space -- the final frontier. Now, as the newest Star Trek film hits cinemas, the NASA/ESA Hubble space telescope is also exploring new frontiers, observing distant galaxies in the galaxy cluster Abell S1063 as part of the Frontier Fields program.
Publ.Date : Thu, 21 Jul 2016 10:38:52 EDT
First atmospheric study of Earth-sized exoplanets points to possible habitability
Using NASA's Hubble Space Telescope, astronomers have conducted the first search for atmospheres around temperate, Earth-sized planets beyond our solar system and found indications that increase the chances of habitability on two exoplanets.
Publ.Date : Wed, 20 Jul 2016 13:19:48 EDT
X marks the spot at the center of the Milky Way galaxy
Two astronomers -- with the help of Twitter--have uncovered the strongest evidence yet that an enormous X-shaped structure made of stars lies within the central bulge of the Milky Way Galaxy.
Publ.Date : Tue, 19 Jul 2016 12:30:25 EDT
NASA's Kepler confirms 100+ exoplanets during its K2 mission
Scientists report the largest haul of confirmed planets - tallying more than a hundred -- since NASA's Kepler space telescope switched from staring into one patch of sky to detecting planets along a much larger portion of the Milky Way. Among the confirmed is a planetary system comprising four promising planets that could be rocky.
Publ.Date : Mon, 18 Jul 2016 14:22:00 EDT
Warm Jupiters not as lonely as expected
After analyzing four years of Kepler space telescope observations, astronomers have given us our clearest understanding yet of a class of exoplanets called 'Warm Jupiters,' showing that many have unexpected planetary companions.
Publ.Date : Thu, 14 Jul 2016 11:09:16 EDT
Dark energy measured with record-breaking map of 1.2 million galaxies
A team of hundreds of physicists and astronomers has announced results from the largest-ever, three-dimensional map of distant galaxies. The team constructed this map to make one of the most precise measurements yet of the dark energy currently driving the accelerated expansion of the Universe.
Publ.Date : Thu, 14 Jul 2016 11:07:51 EDT
Surface composition determines temperature and therefore habitability of a planet
Astronomers have shown that the interaction between the surface and the atmosphere of an exoplanet has major consequences for the temperature on the planet. This temperature, in turn, is a crucial element in the quest for habitable planets outside our Solar System.
Publ.Date : Thu, 14 Jul 2016 09:15:03 EDT
Stellar outburst brings water snowline around a young star into view
A violent outburst by the young star V883 Orionis has given astronomers using ALMA their first view of a water 'snowline' in a protoplanetary disk -- the transition point around the star where the temperature and pressure are low enough for water ice to form.
Publ.Date : Wed, 13 Jul 2016 14:30:15 EDT
Robot would assemble modular telescope -- in space
A new concept in space telescope design uses a modular structure and an assembly robot to build an extremely large telescope in space, performing tasks in which astronaut fatigue would be a problem.
Publ.Date : Wed, 13 Jul 2016 10:16:27 EDT
NASA's Juno spacecraft sends first in-orbit view
The JunoCam camera aboard NASA's Juno mission is operational and sending down data after the spacecraft's July 4 arrival at Jupiter. Juno's visible-light camera was turned on six days after Juno fired its main engine and placed itself into orbit around the largest planetary inhabitant of our solar system. The first high-resolution images of the gas giant Jupiter are still a few weeks away.
Publ.Date : Tue, 12 Jul 2016 18:30:16 EDT
Novel advancements in radiation tolerance of HEMTs
When it comes to putting technology in space, size and mass are prime considerations. A better understanding of AlGaN/GaN HEMTs could mean huge advancements in solid state science, specifically space exploration.
Publ.Date : Tue, 12 Jul 2016 17:30:15 EDT
Black hole makes material wobble around it
The European Space Agency's orbiting X-ray observatory, XMM-Newton, has proved the existence of a "gravitational vortex" around a black hole. The discovery, aided by NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) mission, solves a mystery that has eluded astronomers for more than 30 years, and will allow them to map the behavior of matter very close to black holes. It could also open the door to future investigations of Albert Einstein's general relativity.
Publ.Date : Tue, 12 Jul 2016 15:35:09 EDT
Clusters of small satellites could help estimate Earth's reflected energy
A team of small, shoebox-sized satellites, flying in formation around the Earth, could estimate the planet's reflected energy with twice the accuracy of traditional monolith satellites, according to a new study. If done right, such satellite swarms could also be cheaper to build, launch, and maintain.
Publ.Date : Tue, 12 Jul 2016 11:55:26 EDT
Blue is an indicator of first star's supernova explosions: More than 13 billion years old
Astronomers have discovered that the color of supernovae during a specific phase could be an indicator for detecting the most distant and oldest supernovae in the Universe -- more than 13 billion years old.
Publ.Date : Tue, 12 Jul 2016 11:07:38 EDT
'Frankenstein' galaxy surprises astronomers
About 250 million light-years away, there's a neighborhood of our universe that astronomers had considered quiet and unremarkable. But now, scientists have uncovered an enormous, bizarre galaxy possibly formed from the parts of other galaxies.
Publ.Date : Tue, 12 Jul 2016 09:27:32 EDT
NASA camera catches moon 'photobombing' Earth
For only the second time in a year, a NASA camera aboard the DSCOVR satellite captured a view of the moon as it moved in front of the sunlit side of Earth. From its position between the sun and Earth, DSCOVR conducts its primary mission of real-time solar wind monitoring for the National Oceanic and Atmospheric Administration (NOAA).
Publ.Date : Mon, 11 Jul 2016 15:13:23 EDT
Astronomers discover new distant dwarf planet beyond Neptune
Astronomers have discovered a new dwarf planet orbiting in the disk of small icy worlds beyond Neptune. The new object is about 700 km in diameter and has one of the largest orbits for a dwarf planet. Designated 2015 RR245 by the International Astronomical Union's Minor Planet Center, it was found using the Canada-France-Hawaii Telescope on Maunakea, Hawaii, as part of the ongoing Outer Solar System Origins Survey (OSSOS).
Publ.Date : Mon, 11 Jul 2016 15:08:25 EDT
Dawn maps Ceres craters where ice can accumulate
Scientists with NASA's Dawn mission have identified permanently shadowed regions on the dwarf planet Ceres where ice deposits could exist now.
Publ.Date : Fri, 08 Jul 2016 14:51:32 EDT
Study explains why galaxies stop creating stars
Using a large sample of around 70,000 galaxies, a team of researchers led by University of California, Riverside astronomers may have an answer to an outstanding problem in the study of the evolution of galaxies: Why do galaxies stop creating stars?
Publ.Date : Fri, 08 Jul 2016 14:49:07 EDT
Surprising planet with three suns discovered
A team of astronomers have used the SPHERE instrument on ESO's Very Large Telescope to image the first planet ever found in a wide orbit inside a triple-star system. The orbit of such a planet had been expected to be unstable, probably resulting in the planet being quickly ejected from the system. But somehow this one survives. This unexpected observation suggests that such systems may actually be more common than previously thought.
Publ.Date : Thu, 07 Jul 2016 15:10:09 EDT