Dwarf Star
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Astronomers Spot First Coronal Mass Ejection from a Distant Star, Raising Questions About Planetary Habitability
Astronomers detected the first coronal mass ejection from a distant star, revealing that powerful stellar eruptions may strip atmospheres from nearby planets, affecting exoplanet habitability and the search for life.
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Dead Star's Supernova Explosion Could Be Visible From Earth During Daytime, Study Predicts
When the two stars eventually smash into each other, the supernova explosion would be visible from Earth, even during daytime.
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Young Exoplanet Spotted Shedding Atmosphere Under Stellar Radiation
NASA’s Chandra X-ray Observatory and Hubble Space Telescope have captured a dramatic cosmic event: a baby exoplanet, TOI 1227 b, is being stripped of its atmosphere by powerful X-rays from its host star. Only 8 million years old and orbiting a red dwarf, this Jupiter-sized planet is losing gas at a rate equal to Earth’s entire atmosphere every ...
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Dark Dwarfs: New Star-Like Objects May Reveal Nature of Dark Matter
Scientists have proposed a new class of stellar objects called “dark dwarfs,” sub-stellar bodies that may glow faintly from the energy released by annihilating dark matter particles. Found near the galaxy’s core, these objects could hold crucial clues about the elusive nature of dark matter. Powered not by fusion but by WIMP-like particles, d...
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First Future Type 1a Supernova Detected: White Dwarf Pair to Collide in 23 Billion Years
Astronomers have discovered a pair of white dwarf stars located about 150 light-years from Earth that are on course to collide and produce a Type 1a supernova in approximately 23 billion years. This is the first such system identified near our region of the galaxy. With a combined mass of 1.56 solar masses, the stars are slowly spiralling toward ea...
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TRAPPIST-1b Could Have Carbon Dioxide-Rich Atmosphere, Study Reveals
A new study published in Nature Astronomy proposes that TRAPPIST-1b, the innermost planet in the TRAPPIST-1 system, might have a carbon dioxide-rich atmosphere. This discovery comes from new data showing a reflective haze in the planet's upper atmosphere. Scientists are also investigating the possibility of volcanic activity based on the planet’s...
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Astronomers Discover New Earth-Sized Planet Orbiting Jupiter-Sized Red Dwarf Star
This new extrasolar planet, or exoplanet, is named Speculoos-3b and is located relatively close to the Earth, just 55 light-years away.
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Scientists Spot Star Transforming Into "Cosmic Diamond"
The cosmic bling is taking place just 104 light-years away where a white dwarf is crystallising.
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Astronomers Discovers 2 Super-Earths Orbiting A Distant Star
The study was published in the journal Astronomy & Astrophysics.
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Dead Star Caught Ripping Apart Planetary System in a Rare Incidence of Cosmic Cannibilism
The discovery was made by analysing archival data from NASA's Hubble Telescope and other observatories of the American space agency. Termed cosmic cannibalism, the observation helped shed light on the violent nature of the evolved planetary system and can help astronomers in understanding the makeup of newly forming systems.
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Scientists Believe 'Alien' Rock Hypatia May Reveal Details on Events That Lead to Supernova Explosions
Researchers are hopeful that an extraterrestrial stone found in the Egyptian desert could help shed some light on these spectacular events. The stone is named Hypatia. The experts have a hypothesis that the Hypatia stone originated with a star – a red giant star collapsed into a white dwarf star, which eventually “ate” the other star.
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Scientists Discover a New Planet Hidden in a Debris Disk of a Young Star
Astronomers have a found a new exoplanet hiding in the debris disk of a star. Dubbed as AU Mic b, the exoplanet was found after decades of search, around the red dwarf star, AU Microscopii that is roughly 32 light-years away.
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NASA Scientist Discovers Oldest White Dwarf Star With Puzzling Rings
A citizen scientist working for NASA has found the oldest and coldest known white dwarf - an Earth-sized remnant of a Sun-like star that has died - ringed by dust and debris.
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Ultraviolet Light May Be Key To Finding Alien Life: Study
Ultraviolet light may have played a critical role in the emergence of life on Earth and could be a key to finding life elsewhere in the universe, a study led by an Indian-origin scientist at Harvard suggests.
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Scientists Discover White Dwarf Star With 'Ingredients for Life'
"The findings indicate that some of life's important preconditions are common in the universe," Benjamin Zuckerman said.
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Astronomers Spot First Coronal Mass Ejection from a Distant Star, Raising Questions About Planetary Habitability
Astronomers detected the first coronal mass ejection from a distant star, revealing that powerful stellar eruptions may strip atmospheres from nearby planets, affecting exoplanet habitability and the search for life.
-
Dead Star's Supernova Explosion Could Be Visible From Earth During Daytime, Study Predicts
When the two stars eventually smash into each other, the supernova explosion would be visible from Earth, even during daytime.
-
Young Exoplanet Spotted Shedding Atmosphere Under Stellar Radiation
NASA’s Chandra X-ray Observatory and Hubble Space Telescope have captured a dramatic cosmic event: a baby exoplanet, TOI 1227 b, is being stripped of its atmosphere by powerful X-rays from its host star. Only 8 million years old and orbiting a red dwarf, this Jupiter-sized planet is losing gas at a rate equal to Earth’s entire atmosphere every ...
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Dark Dwarfs: New Star-Like Objects May Reveal Nature of Dark Matter
Scientists have proposed a new class of stellar objects called “dark dwarfs,” sub-stellar bodies that may glow faintly from the energy released by annihilating dark matter particles. Found near the galaxy’s core, these objects could hold crucial clues about the elusive nature of dark matter. Powered not by fusion but by WIMP-like particles, d...
-
First Future Type 1a Supernova Detected: White Dwarf Pair to Collide in 23 Billion Years
Astronomers have discovered a pair of white dwarf stars located about 150 light-years from Earth that are on course to collide and produce a Type 1a supernova in approximately 23 billion years. This is the first such system identified near our region of the galaxy. With a combined mass of 1.56 solar masses, the stars are slowly spiralling toward ea...
-
TRAPPIST-1b Could Have Carbon Dioxide-Rich Atmosphere, Study Reveals
A new study published in Nature Astronomy proposes that TRAPPIST-1b, the innermost planet in the TRAPPIST-1 system, might have a carbon dioxide-rich atmosphere. This discovery comes from new data showing a reflective haze in the planet's upper atmosphere. Scientists are also investigating the possibility of volcanic activity based on the planet’s...
-
Astronomers Discover New Earth-Sized Planet Orbiting Jupiter-Sized Red Dwarf Star
This new extrasolar planet, or exoplanet, is named Speculoos-3b and is located relatively close to the Earth, just 55 light-years away.
-
Scientists Spot Star Transforming Into "Cosmic Diamond"
The cosmic bling is taking place just 104 light-years away where a white dwarf is crystallising.
-
Astronomers Discovers 2 Super-Earths Orbiting A Distant Star
The study was published in the journal Astronomy & Astrophysics.
-
Dead Star Caught Ripping Apart Planetary System in a Rare Incidence of Cosmic Cannibilism
The discovery was made by analysing archival data from NASA's Hubble Telescope and other observatories of the American space agency. Termed cosmic cannibalism, the observation helped shed light on the violent nature of the evolved planetary system and can help astronomers in understanding the makeup of newly forming systems.
-
Scientists Believe 'Alien' Rock Hypatia May Reveal Details on Events That Lead to Supernova Explosions
Researchers are hopeful that an extraterrestrial stone found in the Egyptian desert could help shed some light on these spectacular events. The stone is named Hypatia. The experts have a hypothesis that the Hypatia stone originated with a star – a red giant star collapsed into a white dwarf star, which eventually “ate” the other star.
-
Scientists Discover a New Planet Hidden in a Debris Disk of a Young Star
Astronomers have a found a new exoplanet hiding in the debris disk of a star. Dubbed as AU Mic b, the exoplanet was found after decades of search, around the red dwarf star, AU Microscopii that is roughly 32 light-years away.
-
NASA Scientist Discovers Oldest White Dwarf Star With Puzzling Rings
A citizen scientist working for NASA has found the oldest and coldest known white dwarf - an Earth-sized remnant of a Sun-like star that has died - ringed by dust and debris.
-
Ultraviolet Light May Be Key To Finding Alien Life: Study
Ultraviolet light may have played a critical role in the emergence of life on Earth and could be a key to finding life elsewhere in the universe, a study led by an Indian-origin scientist at Harvard suggests.
-
Scientists Discover White Dwarf Star With 'Ingredients for Life'
"The findings indicate that some of life's important preconditions are common in the universe," Benjamin Zuckerman said.
