Tag: Astrophysics
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Webb directly images young star’s asteroid belt; discovers two additional dusty disks
Using the joint NASA/ESA/CSA James Webb Space Telescope, a group of astronomers has directly imaged three dusty disks — the outermost being an asteroid belt — surrounding a young star. The outermost of the disks was first discovered by NASA’s Infrared Astronomical Satellite in 1983 and has since been imaged in detail by the Hubble…
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With help from NEOWISE, astronomers observe giant star destroying planet for the first time
Using the California Institute of Technology’s (Caltech) Zwicky Transient Facility (ZTF) and NASA’s Near-Earth Object Wide Field Infrared Survey Explorer (NEOWISE) observatory, a group of scientists has observed an aging star destroying a planet within its own star system for the first time. Astronomers have long believed that such a phenomenon occurred in red giant…
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Using JWST, scientists observe silicate clouds and measure the temperature of exoplanets
With help from the joint NASA/ESA/CSA James Webb Space Telescope, two teams of scientists have made groundbreaking, first-of-their-kind discoveries on two exoplanets. One team utilized the immense power of Webb’s Mid-Infrared Instrument (MIRI) and Near-Infrared Spectrograph (NIRSpec) instruments to observe and characterize clouds and molecules in the atmosphere of an exoplanet located 40 light-years away.…
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Webb telescope sees the prelude to a supernova
The luminous, hot star Wolf-Rayet 124 (WR 124) is prominent at the center of the James Webb Space Telescope’s composite image combining near-infrared and mid-infrared wavelengths of light from Webb’s Near-Infrared Camera and Mid-Infrared Instrument. Credits: NASA, ESA, CSA, STScI, Webb ERO Production Team A new image from the James Webb Space Telescope shows a rare…
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Using Hubble, researchers measure the mass of a single white dwarf for the first time
Of the trillions of stars scattered throughout the universe, one of the most common are the white dwarfs, which are the dormant, burned out, and leftover cores of low/medium mass stars. For decades, scientists have only measured the masses of white dwarfs within binary star systems. While these measurements provide insight into the true masses…
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Webb peers at young star’s dusty disk, discovers an exoplanet, and uncovers star formation
At the 241st meeting of the American Astronomical Society (AAS) on Jan. 11, three teams presented research that utilized the capabilities of NASA’s James Webb Space Telescope. The first team used Webb to observe the dusty disk surrounding a young red dwarf star, the second to discover an exoplanet, and the third used the telescope’s…
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Astronomers witness unprecedented corona formation, evolution around black hole
With help from NASA’s Nuclear Spectroscopic Telescopic Array (NuSTAR) X-ray telescope, a group of researchers recently bore unusually close witness to the formation and evolution of an unexpected corona around a supermassive black hole as it destroyed a star that had passed too close to it. The event, located 250 million light years from Earth,…
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TESS returns from safe mode, the case of the missing exoplanet atmosphere
Following an incident that triggered the telescope to enter safe mode, NASA’s Transiting Exoplanet Survey Satellite (TESS) has resumed normal science operations in its highly elliptical Earth orbit. TESS entered safe mode on Monday, Oct. 10, and was in the protective states until Thursday, Oct. 13, at approximately 22:30 UTC. Meanwhile, a team of researchers…
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Hubble and VLT discover spiraling structure of young stars, hints at star formation in early universe
In a recently released study, data from the joint NASA/European Space Agency (ESA) Hubble Space Telescope and the European Space Observatory’s (ESO) ground-based Very Large Telescope (VLT) has been used to discover young stars spiraling into the center of a star cluster within the Small Magellanic Cloud, a small satellite galaxy of the Milky Way.…
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Data from ESA’s Gaia mission reveals our Sun’s future and past
On June 13, the third major data release from the European Space Agency’s (ESA) Gaia mission revealed details about the past and future of our solar system’s star, the Sun, by using data collected by Gaia on stars of similar mass and composition to our Sun. Gaia is a star mapping mission and collects massive…