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Hubble Space Telescope may have found a planet born after its star died
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A strange chemical signature in old Hubble observations may point to a planet that formed after its star had already died. Astronomers found unusually high levels of niobium around the white dwarf HS 0209+0832, suggesting some of the star’s expelled material may have assembled in
A strange chemical signature in old Hubble observations may point to a planet that formed after its star had already died. Astronomers found unusually high levels of niobium around the white dwarf HS 0209+0832, suggesting some of the star’s expelled material may have assembled into a new gas giant. TESS data also hints at a Jupiter-sized planet orbiting just 3.7 million miles from the star.
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MIT astronomers catch a star in a feast that could last billions of years
Astronomers have discovered a bizarre star system about 300 light-years from Earth where a small star is slowly devouring a nearby brown dwarf, an object too massive to be a planet but too small to be a true star. Unlike stars that rapidly swallow their companions, this one is gr
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Einstein Probe reveals a hidden phase of neutron star collisions
Einstein Probe revealed nearly 10 minutes of soft X-ray activity following a short gamma-ray burst, exposing a phase of neutron star mergers that previous missions may have missed. The prolonged emission could have been powered by a newly formed magnetar and may provide a valuabl
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NASA’s Webb finds signs of Mars-sized worlds smashing together
NASA’s James Webb Space Telescope is giving astronomers a glimpse of the kinds of violent collisions that may have shaped our own solar system, including the giant impact thought to have created the Moon. By studying 21 rare “extreme debris disks” around young stars, researchers
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Webb finds a surprising atmosphere on a scorching lava world
The James Webb Space Telescope has found strong evidence that the rocky lava world HD 3167 b has an atmosphere, despite circling its star every 24 hours under extreme heat. The surprising discovery could help scientists understand how rocky planets retain atmospheres and what the
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NASA’s Roman telescope just opened its planet-hunting eye
NASA’s Roman Space Telescope has demonstrated remarkable pointing stability and given its powerful planet-imaging coronagraph its first look at the cosmos. The telescope can already stay locked on a target with precision comparable to aiming a laser at a dime from about 150 miles
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