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In recent years there has been an exhaustive study of red dwarf stars to find exoplanets in orbit around them. These stars have effective surface temperatures between 2400 and 3700 K (over 2000 degrees cooler than the Sun), and masses between 0.08 and 0.45 solar masses.
Apr 16th, 2021
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New clues discovered in quest to unravel astrophysical mystery.
Apr 16th, 2021
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A survey of star formation activity in the Orion Nebula Cluster found similar mass distributions for newborn stars and dense gas cores, which may evolve into stars. Counterintuitively, this means that the amount of gas a core accretes as it develops, and not the initial mass of the core, is the key factor in deciding the final mass of the produced star.
Apr 16th, 2021
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Certain ultralight bosons would be expected to put the brakes on black holes, but new results show no such slowdown.
Apr 14th, 2021
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Data from nineteen observatories are being released that promise to give unparalleled insight into this black hole and the system it powers, and to improve tests of Einstein's General Theory of Relativity.
Apr 14th, 2021
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Scientists have established the technological basis for atom interferometry on board of a sounding rocket and demonstrated that such experiments are not only possible on Earth, but also in space.
Apr 13th, 2021
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Researchers employed magnesium to convert CO2 to methane, methanol and formic acid, using water as the sole hydrogen source.
Apr 10th, 2021
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The first helicopter ever to fly on another planet will soon attempt its first trip above the surface of Mars.
Apr 9th, 2021
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An international group of scientists have studied the chemical composition of 50 protoplanetary-disk forming regions in the Perseus Molecular Cloud, and found that despite being in the same cloud, the amounts of complex organic molecules they contain are quite different.
Apr 9th, 2021
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Mars had dry and wet eras and dried up for good 3 billion years ago.
Apr 9th, 2021
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Machine-learning methods lead to discovery of rare 'quadruply imaged quasars' that can help solve cosmological puzzles.
Apr 9th, 2021
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To confirm life on other planets, we need to detect far more molecules in their atmospheres than we currently do to rule out non-biological chemical processes.
Apr 9th, 2021
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Astronomers have discovered the most rapidly rotating brown dwarfs known. They found three brown dwarfs that each complete a full rotation roughly once every hour.
Apr 8th, 2021
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Scientists, using coordinated observations of the Crab pulsar in a number of frequencies, have discovered that the 'giant radio pulses' which it emits include an increase in x-ray emissions in addition to the radio and visible light emissions that had been previously observed.
Apr 8th, 2021
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An international program conducted for nearly 20 years by scientists, has determined that 5,200 tons per year of micrometeorites reach the ground.
Apr 8th, 2021
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Astronomers have found evidence that the first exoplanet that was identified transiting its star could have migrated to a close orbit with its star from its original birthplace further away.
Apr 7th, 2021
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Researchers the world over have long believed that 70 percent of the universe is composed of dark energy, a substance that makes it possible for the universe to expand at an ever-increasing rate. But in a new study, researchers tested a model which suggests that the universe's expansion is due to a dark substance with a kind of magnetic force.
Apr 6th, 2021
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The world's first ground-based observations of the bare nucleus of a comet nearing the end of its active life revealed that the nucleus has a diameter of 800 meters and is covered with large grains of phyllosilicate.
Apr 6th, 2021
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