Tag: #astronomy

Rubin Observatory’s real-time sky alerts debut with 800,000 notifications in a night

Vera C. Rubin Observatory’s first large-scale public test sent 800,000 rapid alerts, previewing a system built for millions nightly in LSST.

#astronomy, #rubinobservatory, #lsst, #space, #datastreams

Hubble pins down the size of interstellar comet 3I/ATLAS, bolstering natural-origin case

New Hubble analysis extracts the first solid measurement of an interstellar comet’s ядро: a ~2.6-km, elongated nucleus behaving like ordinary comets.

#astronomy, #hubble, #comets, #interstellar

Kepler Data Reveal a One-Transit Candidate: An Earth-Size Planet on a Near-Earth-Year Orbit

A single dip in Kepler’s K2 data points to an Earth-size planet candidate with a ~355-day orbit around a bright nearby orange dwarf—if it transits again.

#exoplanets, #nasa, #kepler, #astronomy, #jameswebb

James Webb Telescope Watches Baby Star Forge Crystals and Blow Them Toward Comet Zones

Webb tracked a young star’s outbursts as they turned dust into crystalline minerals and lofted them outward—explaining crystals found in icy comets.

#jwst, #astronomy, #protostars, #comets, #planetformation

‘Cotton-candy’ planets around young star offer rare glimpse of how worlds shrink with age

Four ultra-puffy planets orbiting 20-million-year-old V1298 Tau reveal how newborn worlds lose atmospheres and contract into common super-Earths.

#exoplanets, #astronomy, #nasa, #planetformation, #jwst

Solar Orbiter Captures ‘Magnetic Avalanche’ Building a Major Solar Flare

ESA’s Solar Orbiter watched a big flare ignite through a cascade of tiny magnetic failures, supporting long-standing avalanche models and aiding space-weather forecasting.

#solarorbiter, #solarflare, #spaceweather, #esa, #astronomy

Webb Confirms ‘Normal’ Galaxy From Cosmic Dawn, 310 Million Years After the Big Bang

A Webb spectrum pins PAN-z14-1 at redshift 13.53, revealing a large, bright but weak-line galaxy that hints at early diversity.

#jameswebb, #astronomy, #galaxies, #cosmicdawn, #arxiv