Mars may have less water than previously estimated
Scientists have developed an improved model for planet-wide groundwater flow prediction on Mars that is not only more accurate but more elegant too.
Apr 20th, 2022
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Jupiter's moon Io has splendid dunes
Study shows new way dunes can form on varied celestial surfaces.
Apr 19th, 2022
Read moreGiant stars undergo dramatic weight loss program
Astronomers have found a slimmer type of red giant star for the first time. These stars have undergone dramatic weight loss, possibly due to a greedy companion. The discovery is an important step forward to understanding the life of stars in the Milky Way.
Apr 14th, 2022
Read moreMAGIC telescopes observe nova explosion shining brightly in gamma rays at extremely high energy
The MAGIC telescopes have observed the nova RS Ophiuchi shining brightly in gamma rays at extremely high energy. The Gamma rays emanate from protons that are accelerated to very high energies in the shock front following the explosion. This suggests that novae are also a source of the ubiquitous cosmic radiation in the universe which consists mainly of protons rich in energy, which race through space at almost the speed of light.
Apr 14th, 2022
Read moreHubble sheds light on origins of supermassive black holes
Astronomers have identified a rapidly growing black hole in the early universe that is considered a crucial 'missing link' between young star-forming galaxies and the first supermassive black holes.
Apr 13th, 2022
Read moreHubble confirms largest comet nucleus ever seen
The nucleus is about 50 times larger than found at the heart of most known comets. Its mass is estimated to be a staggering 500 trillion tons, a hundred thousand times greater than the mass of a typical comet found much closer to the Sun.
Apr 12th, 2022
Read moreAstronomers capture surprising changes in Neptune's temperatures
An international team of astronomers have used ground-based telescopes, including the European Southern Observatory's Very Large Telescope, to track Neptune's atmospheric temperatures over a 17-year period. They found a surprising drop in Neptune's global temperatures followed by a dramatic warming at its south pole.
Apr 11th, 2022
Read moreDifferences between the Moon's near and far sides linked to colossal ancient impact
New research shows how the impact that created the Moon's South Pole - Aitken basin is linked to the stark contrast in composition and appearance between the two sides of the Moon.
Apr 8th, 2022
Read moreAstronomers discover a new type of freak stars covered in helium burning ashes
While normal stars have surfaces composed of hydrogen and helium, the newly discovered stars have their surfaces covered with carbon and oxygen, the ashes of He-burning - a very exotic composition for a star. The situation becomes more puzzling because the new stars have temperatures and radii that indicate they are still burning helium in their cores.
Apr 8th, 2022
Read more10 new gravitational waves found in LIGO-Virgo's O3a data
Astrophysicists re-examined LIGO-Virgo's O3a data and found 10 additional black hole mergers, all outside the detection threshold of the original analysis. The new mergers hint at exotic astrophysical scenarios that, for now, are only possible to study using gravitational wave astronomy.
Apr 8th, 2022
Read moreThe hunt for the gravitational wave background
Scientists show that using gamma rays instead of radio waves yields a clearer view to the pulsars and provides an independent and complementary way to detect gravitational waves.
Apr 7th, 2022
Read moreAstronomers detect galactic space laser
The record-breaking find is the most distant megamaser of its kind ever detected, at about five billion light years from Earth.
Apr 7th, 2022
Read moreAstronomers have spotted the farthest galaxy ever
Named HD1, the galaxy candidate is some 13.5 billion light-years away and scientists have begun to speculate exactly what the galaxy is.
Apr 7th, 2022
Read moreHubble probes extreme weather on ultra-hot Jupiters
In two new papers, teams of Hubble astronomers are reporting on bizarre weather conditions on these sizzling worlds. It's raining vaporized rock on one planet, and another one has its upper atmosphere getting hotter rather than cooler because it is being 'sunburned' by intense ultraviolet (UV) radiation from its star.
Apr 6th, 2022
Read moreScientists connect the dots between Galilean moon, auroral emissions on Jupiter
Juno spacecraft discovered clues about mysterious processes creating the dance of the auroral footprints.
Apr 5th, 2022
Read moreRinging black holes could put general relativity to the test
Gravitational waves could reveal whether general relativity must be modified at the edges of black holes.
Apr 5th, 2022
Read moreHubble finds a planet forming in an unconventional way
The Hubble Space Telescope has directly photographed evidence of a Jupiter-like protoplanet forming through what researchers describe as an 'intense and violent process'. This discovery supports a long-debated theory for how planets like Jupiter form, called 'disk instability'.
Apr 4th, 2022
Read moreThermal electrons play key role in determining emissions from gamma-ray-burst afterglows
Theoretical model probes the origins of unexpectedly high-energy radiation from the aftermath of cosmic explosions.
Apr 4th, 2022
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