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|Astronomy News -- ScienceDaily|
Updated : Fri, 09 Dec 2016 00:11:39 EST
Amateur astronomer helps uncover secrets of unique pulsar binary system
A professional astrophysicist and an amateur astronomer have teamed up to reveal surprising details about an unusual millisecond pulsar (MSP) binary system comprising one of the fastest-spinning pulsars in our Galaxy and its unique companion star.
Publ.Date : Thu, 08 Dec 2016 14:33:43 EST
Will Earth still exist 5 billion years from now?
What will happen to Earth when, in a few billion years' time, the sun is a hundred times bigger than it is today? Using the most powerful radio telescope in the world, an international team of astronomers has set out to look for answers in the star L2 Puppis. Five billion years ago, this star was very similar to the sun as it is today.
Publ.Date : Thu, 08 Dec 2016 09:04:44 EST
Cassini beams back first images from new orbit
NASA's Cassini spacecraft has sent to Earth its first views of Saturn's atmosphere since beginning the latest phase of its mission. The new images show scenes from high above Saturn's northern hemisphere, including the planet's intriguing hexagon-shaped jet stream.
Publ.Date : Wed, 07 Dec 2016 15:57:55 EST
Saturn's bulging core implies moons younger than thought
Freshly harvested data from NASA's Cassini mission reveals that the ringed planet's moons may be younger than previously thought.
Publ.Date : Wed, 07 Dec 2016 13:23:46 EST
Dark matter may be smoother than expected
Analysis of a giant new galaxy survey suggests that dark matter may be less dense and more smoothly distributed throughout space than previously thought. An international team used data from the Kilo Degree Survey (KiDS) to study how the light from about 15 million distant galaxies was affected by the gravitational influence of matter on the largest scales in the universe.
Publ.Date : Wed, 07 Dec 2016 09:29:10 EST
Second-generation stars identified, giving clues about their predecessors
Astronomers have identified what they believe to be the second generation of stars, shedding light on the nature of the universe's first stars.
Publ.Date : Tue, 06 Dec 2016 15:56:38 EST
Relationships between chemicals found on comets
A new study has revealed similarities and relationships between certain types of chemicals found on 30 different comets, which vary widely in their overall composition compared to one another. The research is part of ongoing investigations into these primordial bodies, which contain material largely unchanged from the birth of the solar system some 4.6 billion years ago.
Publ.Date : Sat, 03 Dec 2016 15:45:35 EST
New evidence on the formation of the solar system
Scientists are using new computer models and evidence from meteorites to show that a low-mass supernova triggered the formation of our solar system.
Publ.Date : Fri, 02 Dec 2016 10:10:23 EST
Embryonic cluster galaxy immersed in giant cloud of cold gas
Astronomers studying a cluster of still-forming protogalaxies seen as they were more than 10 billion years ago have found that a giant galaxy in the center of the cluster is forming from a surprisingly-dense soup of molecular gas.
Publ.Date : Thu, 01 Dec 2016 16:46:58 EST
Climate cycles may explain how running water carved Mars' surface features
Dramatic climate cycles on early Mars, triggered by buildup of greenhouse gases, may be the key to understanding how liquid water left its mark on the planet's surface, according to a team of planetary scientists.
Publ.Date : Thu, 01 Dec 2016 16:42:56 EST
Tangled threads weave through cosmic oddity
New observations from the NASA/ESA Hubble Space Telescope have revealed the intricate structure of the galaxy NGC 4696 in greater detail than ever before. The elliptical galaxy is a beautiful cosmic oddity with a bright core wrapped in system of dark, swirling, thread-like filaments.
Publ.Date : Thu, 01 Dec 2016 12:02:40 EST
Astronomers watch star clusters spewing out dust
Galaxies are often thought of as sparkling with stars, but they also contain gas and dust. Now, a team of astronomers has used new data to show that stars are responsible for producing dust on galactic scales, a finding consistent with long-standing theory. Dust is important because it is a key component of rocky planets such as Earth.
Publ.Date : Thu, 01 Dec 2016 11:55:05 EST
Star of Bethlehem may not be a star after all
Studying historical, astronomical and biblical records, Grant Mathews, University of Notre Dame professor, believes the event that led the Magi was an extremely rare planetary alignment occurring in 6 B.C., and the likes of which may never be seen again.
Publ.Date : Thu, 01 Dec 2016 11:25:50 EST
It's a bird... It's a plane... It's the tiniest asteroid!
A research team has characterized the smallest known asteroid using Earth-based telescopes: Asteroid 2015 TC25 measures just 6 feet across, they report.
Publ.Date : Wed, 30 Nov 2016 15:44:31 EST
First signs of weird quantum property of empty space?
By studying the light emitted from an extraordinarily dense and strongly magnetized neutron star, astronomers may have found the first observational indications of a strange quantum effect, first predicted in the 1930s. The polarization of the observed light suggests that the empty space around the neutron star is subject to a quantum effect known as vacuum birefringence.
Publ.Date : Wed, 30 Nov 2016 08:28:04 EST
NASA Saturn mission prepares for 'ring-grazing orbits'
A thrilling ride is about to begin for NASA's Cassini spacecraft. Engineers have been pumping up the spacecraft's orbit around Saturn this year to increase its tilt with respect to the planet's equator and rings. And on Nov. 30, following a gravitational nudge from Saturn's moon Titan, Cassini will enter the first phase of the mission's dramatic endgame.
Publ.Date : Tue, 29 Nov 2016 10:29:30 EST
Low-mass supernova may have triggered formation of our solar system
A research team has used new models and evidence from meteorites to propose that a low-mass supernova triggered the formation of our solar system.
Publ.Date : Mon, 28 Nov 2016 11:15:56 EST
Timing the shadow of a potentially habitable extrasolar planet paves the way to search for alien life
Scientists have observed the transit of a potentially Earth-like extrasolar planet known as K2-3d. A transit is a phenomenon in which a planet passes in front of its parent star, blocking a small amount of light from the star, like a shadow of the planet. While transits have previously been observed for thousands of other extrasolar planets, K2-3d is important because there is a possibility that it might harbor extraterrestrial life.
Publ.Date : Mon, 28 Nov 2016 08:45:13 EST
New stars discovery shed new light on Galaxy's formation
An astronomer has discovered a new family of stars in the core of the Milky Way Galaxy which provides new insights into the early stages of the Galaxy's formation.
Publ.Date : Fri, 25 Nov 2016 14:50:15 EST
Mars ice deposit holds as much water as Lake Superior
Frozen beneath a region of cracked and pitted plains on Mars lies about as much water as what's in Lake Superior, largest of the Great Lakes, researchers using NASA's Mars Reconnaissance Orbiter have determined.
Publ.Date : Tue, 22 Nov 2016 13:10:31 EST