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|Astronomy News -- ScienceDaily|
Updated : Sun, 20 Sep 2020 22:47:51 EDT
Solar storm forecasts for Earth improved with help from the public
Scientists used observations recorded by members of the public to increase accuracy of computer model predictions of when harmful CMEs will hit Earth.
Publ.Date : Fri, 18 Sep 2020 11:33:50 EDT
Hubble captures crisp new portrait of Jupiter's storms
Hubble's sharp view is giving researchers an updated weather report on the monster planet's turbulent atmosphere, including a remarkable new storm brewing, and a cousin of the famous Great Red Spot region gearing up to change color -- again.
Publ.Date : Thu, 17 Sep 2020 18:04:17 EDT
Can life survive a star's death? Webb telescope can reveal the answer
When stars like our sun die, all that remains is an exposed core -- a white dwarf. A planet orbiting a white dwarf presents a promising opportunity to determine if life can survive the death of its star, according to researchers.
Publ.Date : Wed, 16 Sep 2020 11:36:04 EDT
Enormous planet quickly orbiting a tiny, dying star
Thanks to a bevy of telescopes in space and on Earth -- and even a pair of amateur astronomers in Arizona -- astronomers have discovered a Jupiter-sized planet orbiting at breakneck speed around a distant white dwarf star.
Publ.Date : Wed, 16 Sep 2020 11:35:47 EDT
Scientist searches for stellar phosphorus to find potentially habitable exoplanets
A scientist has identified stellar phosphorus as a probable marker in narrowing the search for life in the cosmos. She has developed techniques to identify stars likely to host exoplanets, based on the composition of stars known to have planets, and proposes that upcoming studies target stellar phosphorus to find systems with the greatest probability for hosting life as we know it.
Publ.Date : Wed, 16 Sep 2020 11:35:19 EDT
Modern theory from ancient impacts
It is generally accepted that the inner region of the early solar system was subject to an intense period of meteoric bombardment referred to as the late heavy bombardment. However, researchers have found evidence that suggests this period occurred slightly earlier than thought and was less intense but also more prolonged. Such details about this period could impact theories about the early Earth and the dawn of life.
Publ.Date : Wed, 16 Sep 2020 09:42:47 EDT
Study shows difficulty in finding evidence of life on Mars
While scientists are eager to study the red planet's soils for signs of life, researchers must ponder a considerable new challenge: Acidic fluids - which once flowed on the Martian surface - may have destroyed biological evidence hidden within Mars' iron-rich clays, according to researchers.
Publ.Date : Tue, 15 Sep 2020 12:13:13 EDT
A warm Jupiter orbiting a cool star
A planet observed crossing in front of, or transiting, a low-mass star has been determined to be about the size of Jupiter.
Publ.Date : Mon, 14 Sep 2020 11:41:22 EDT
Carbon-rich exoplanets may be made of diamonds
Astronomers have determined that some carbon-rich exoplanets, given the right circumstances, could be made of diamonds and silica.
Publ.Date : Fri, 11 Sep 2020 20:00:03 EDT
New Hubble data suggests there is an ingredient missing from current dark matter theories
Recent observations have found that something may be missing from the theories of how dark matter behaves. This missing ingredient may explain why researchers have uncovered an unexpected discrepancy between observations of the dark matter concentrations in a sample of massive galaxy clusters and theoretical computer simulations of how dark matter should be distributed in clusters.
Publ.Date : Thu, 10 Sep 2020 15:03:48 EDT
Jupiter's moons could be warming each other
The gravitational push and pull by Jupiter's moons could account for more warming than the gas giant Jupiter alone.
Publ.Date : Thu, 10 Sep 2020 15:02:36 EDT
Unique supernova explosion
Astronomers have discovered a supernova that could help uncover the origins of the group of supernovae this star belongs to.
Publ.Date : Thu, 10 Sep 2020 13:04:16 EDT
Revealing the secrets of high-energy cosmic particles
The 'IceCube' neutrino observatory deep in the ice of the South Pole has already brought spectacular new insights into cosmic incidents of extremely high energies. Astronomers observe the light that comes to us from distant celestial objects to explore the Universe. However, light does not tell us much about the highest energy events beyond our Galaxy, such as the jets of active galactic nuclei, gamma-ray bursts or supernovae, because photons in the upper gamma-ray range lose their extreme energies on their long way through the Universe through interaction with other particles.
Publ.Date : Thu, 10 Sep 2020 10:06:05 EDT
Massive halo finally explains stream of gas swirling around the Milky Way
Astronomers have discovered that a halo of warm gas surrounding the Magellanic Clouds likely acts as a protective cocoon, shielding the dwarf galaxies from the Milky Way's own halo and contributing most of the Magellanic Stream's mass.
Publ.Date : Wed, 09 Sep 2020 11:48:41 EDT
Sand-sized meteoroids are peppering asteroid Bennu
A new study posits that the major particle ejections off the near-Earth asteroid Bennu may be the consequence of impacts by small, sand-sized particles called meteoroids onto its surface as the object nears the Sun.
Publ.Date : Wed, 09 Sep 2020 11:48:00 EDT
Australian telescope finds no signs of alien technology in 10 million star systems
A radio telescope in outback Western Australia has completed the deepest and broadest search at low frequencies for alien technologies, scanning a patch of sky known to include at least 10 million stars. Astronomers used the Murchison Widefield Array (MWA) telescope to explore hundreds of times more broadly than any previous search for extraterrestrial life.
Publ.Date : Wed, 09 Sep 2020 08:59:44 EDT
Meteorites show transport of material in early solar system
New studies of a rare type of meteorite show that material from close to the Sun reached the outer solar system even as the planet Jupiter cleared a gap in the disk of dust and gas from which the planets formed. The results add to an emerging understanding of how our Solar System formed and how planets form around other stars.
Publ.Date : Tue, 08 Sep 2020 13:11:23 EDT
How to have a blast like a black hole
Scientists have created magnetized-plasma conditions similar to those near a black hole using very intense laser pulses. This work may help show how X-rays can be produced by astronomical objects.
Publ.Date : Tue, 08 Sep 2020 10:16:38 EDT
Peculiar planetary system architecture around three Orion stars explained
In our Solar System, the eight planets and many other minor objects orbit in a flat plane around the Sun; but in some distant systems, planets orbit on an incline -- sometimes a very steep one. New work could explain the architecture of multi-star systems in which planets are separated by wide gaps and do not orbit on the same plane as their host star's equatorial center.
Publ.Date : Thu, 03 Sep 2020 14:50:28 EDT
An unexpected origin story for a lopsided black hole merger
A lopsided merger of two black holes may have an oddball origin story, according to a new study.
Publ.Date : Wed, 02 Sep 2020 18:24:42 EDT