Science Daily

Subscribe to Science Daily feed Science Daily
Astronomy news. New! Earth-like extrasolar planet found; double helix nebula; supermassive black holes, astronomy articles, astronomy pictures. Updated daily.
Updated: 21 hours 48 min ago

A one-of-a-kind star found to change over decades

Tue, 09/12/2017 - 3:48pm
Researchers recently found new evidence that lends support to an existing theory of how the unusual star emits energy.

Astronauts don't develop anemia during spaceflight, NASA study suggests

Tue, 09/12/2017 - 9:30am
Space flight anemia -- the reduction of circulating red blood cells during time spent in space -- is an established phenomenon, but it may not be a major concern during long-duration space missions, according to a study.

Explosive birth of stars swells galactic cores

Sun, 09/10/2017 - 11:25pm
Astronomers found that active star formation upswells galaxies, like yeast helps bread rise. Using three powerful telescopes on the ground and in orbit, they observed galaxies from 11 billion years ago and found explosive formation of stars in the cores of galaxies. This suggests that galaxies can change their own shape without interaction with other galaxies.

Are we being watched? Tens of other worlds could spot the Earth

Fri, 09/08/2017 - 8:55pm
Scientists have turned exoplanet-hunting on its head, in a study that instead looks at how an alien observer might be able to detect Earth using our own methods. They find that at least nine exoplanets are ideally placed to observe transits of Earth.

Climate change for aliens

Thu, 09/07/2017 - 11:24am
For more than 50 years, the Kardashev scale has been the gold standard for classifying hypothetical 'exo-civilizations' by their ability to harness energy. A team of researchers has devised a new system that takes into account the impacts of that energy use.

Pluto features given first official names

Thu, 09/07/2017 - 11:24am
The Working Group for Planetary System Nomenclature of the International Astronomical Union has officially approved the naming of 14 features on the surface of Pluto. These are the first geological features on the planet to be named following the close flyby by the New Horizons spacecraft in July 2015.

Ultraviolet light from superluminous supernova key to revealing explosion mechanism

Thu, 09/07/2017 - 10:24am
An international team of researchers has discovered a way to use UV light from superluminous supernovae to uncover its explosion mechanism, and used it to identify Gaia16apd as a shock-interacting supernova, reports a new study.

Earth as hybrid planet: New classification places Anthropocene era in astrobiological context

Wed, 09/06/2017 - 1:55pm
A new classification scheme has been devised for the evolutionary stages of worlds based on 'non-equilibrium thermodynamics' -- a planet's energy flow being out of sync, as the presence of life could cause.

Does the organic material of comets predate our solar system?

Wed, 09/06/2017 - 11:46am
The Rosetta space probe discovered a large amount of organic material in the nucleus of comet 'Chury.' Researchers now advance the theory that this matter has its origin in interstellar space and predates the birth of the solar system.

Accretion-powered pulsar reveals unique timing glitch

Wed, 09/06/2017 - 10:36am
The discovery of the largest timing irregularity yet observed in a pulsar is the first confirmation that pulsars in binary systems exhibit the strange phenomenon known as a 'glitch.'

Unique study tests fundamental laws of physics

Tue, 09/05/2017 - 12:54pm
A study that will ‘test our understanding of how the Universe works, particularly outside the relatively narrow confines of our planet’ is being undertaken by an international team of researchers.

Crab nebula in the limelight: Unified model for the entire radiation spectrum

Tue, 09/05/2017 - 12:48pm
The origin of cosmic rays, high-energy particles from outer space constantly impacting on Earth, is among the most challenging open questions in astrophysics. Now research sheds new light on the origin of those energetic particles.

'Extreme' telescopes find the second-fastest-spinning pulsar

Tue, 09/05/2017 - 12:32pm
By following up on mysterious high-energy sources mapped by NASA's Fermi Gamma-ray Space Telescope, a Netherlands-based radio telescope has discovered a new pulsar, the second fastest-spinning known.

Stellar corpse sheds light on origin of cosmic rays

Mon, 09/04/2017 - 9:34am
New research revealed that the entire zoo of electromagnetic radiation streaming from the Crab nebula -- one of the most iconic objects in the sky -- has its origin in one population of electrons and must be produced in a different way than scientists have traditionally thought. The results have implications for our understanding of how cosmic rays attain their incredible energies.

Physicists propose new theories of black holes from the very early universe

Fri, 09/01/2017 - 1:55pm
'Primordial black holes,' believed to have formed shortly after the Big Bang, might explain how heavy elements such as gold, platinum and uranium came to be, physicists report.

Equatorial jet in Venusian atmosphere

Fri, 09/01/2017 - 9:38am
Observations by Japan's Venus climate orbiter Akatsuki have revealed an equatorial jet in the lower to middle cloud layer of the planet's atmosphere, a finding that could be pivotal to unraveling a phenomenon called superrotation.

First hints of possible water content on TRAPPIST-1 planets

Thu, 08/31/2017 - 11:30am
Astronomers have been trying to determine whether there might be water on the seven Earth-sized planets orbiting the nearby dwarf star TRAPPIST-1. The results suggest that the outer planets of the system might still harbor substantial amounts of water. This includes the three planets within the habitable zone of the star, lending further weight to the possibility that they may indeed be habitable.

Artificial intelligence analyzes gravitational lenses 10 million times faster

Wed, 08/30/2017 - 1:22pm
Researchers have for the first time shown that neural networks -- a form of artificial intelligence -- can accurately analyze the complex distortions in spacetime known as gravitational lenses 10 million times faster than traditional methods.

What lit up the universe? Black holes may have punctured darkened galaxies, allowing light to escape

Wed, 08/30/2017 - 11:48am
Researchers have a new explanation for how the universe changed from darkness to light. They propose that black holes within galaxies produce winds strong enough to fling out matter that punctures holes in galaxies, allowing light to escape.

NASA's Lunar mission captures solar eclipse as seen from the moon

Tue, 08/29/2017 - 4:45pm
LRO captured an image of the Moon's shadow over a large region of the United States, centered just north of Nashville, Tennessee.