Orbital science, astronomy, remote sensing, and what lies beyond the atmosphere.
A study in Nature Astronomy has traced a puzzling repeating radio signal to a white dwarf binary, giving astronomers one of their clearest identifications yet for a rare class of slow cosmic pulses. The system, called ASKAP J174508.9-505149, contains a dense stellar remnant that is pulling material from a small companion star. The discovery matters…
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A study in Astronomy & Astrophysics combines Webb’s infrared vision with more than a decade of Hubble observations to reveal a layered history inside Terzan 5. The crowded stellar system near the Milky Way’s center appears to contain up to four generations of stars, giving astronomers a rare surviving record from the galaxy’s early formation.…
NASA’s latest launch selection points to a quiet puzzle at the heart of climate science: how the Sun’s changing energy and Earth’s high ice clouds shape the planet below. The agency has chosen Rocket Lab to launch two science missions, TSIS-2 and PolSIR, using three Electron rockets from Launch Complex 1 in Mahia, New Zealand.…
A new arXiv study by Nathan A. Kaib and Sean N. Raymond suggests that the star HD 7977 may have passed close enough to the Sun about 2.5 million years ago to leave a detectable mark on comet orbits today. Their simulations point to a startling possibility: the Solar System may still be moving through…
