China’s Einstein Probe caught three stars erupting in X-rays in a single day — and ground telescopes confirmed two of them in visible light within minutes, in a demonstration of how fast modern astronomy can now move.
The three triggers all came on Thursday 6 November 2026 (UTC). At 13:48 UTC, the probe caught a flare from the young star V* V1096 Tau in the Taurus molecular cloud, about 136 parsecs (around 444 light-years) away, with a flux of about 1.0×10⁻¹⁰ erg/s/cm² and a luminosity of about 2.2×10³² erg/s, recorded in GCN Circular 46180. At 18:19:44 UTC, it caught a flare from the star Gaia DR3 2924189833075213696; the SVOM/C-GFT ground telescope began imaging 312 seconds — five minutes and 12 seconds — later, at 18:24:56 UTC from Jilin Station, recorded in GCN Circulars 46181 and 46184. At 21:28:37 UTC, it caught a flare from a high-proper-motion M dwarf, Gaia DR3 111731654357442816 in Perseus; the Ondrejov Observatory in the Czech Republic was observing within 15 minutes, and the GOTO network in the Canary Islands confirmed it within 20 minutes, at 21:48:37 UTC, in GCN Circulars 46177, 46178 and 46179.
Six minutes from space to ground
The second flare is the headline for speed: 312 seconds from the probe’s trigger to a ground telescope imaging the same star. The third was confirmed within 20 minutes. That is the point of the Einstein Probe, launched on 9 January 2024 by the Chinese Academy of Sciences: to catch the sky changing, and to tell the ground quickly enough to watch it happen.
SVOM, the joint Chinese-French mission launched in June 2024, played its part in the second detection. The two missions, plus ground networks like GOTO, now work as a single system: space sees it, ground confirms it, and the whole loop closes in minutes.
Three flares, one day
Three stellar flares in one day is a busy day for any X-ray telescope, and the three detections are internally consistent across the reports. The figures come from the NASA GCN Circulars, the primary record — the news write-ups are from a single outlet, TechTimes, citing those circulars, so this draft is flagged as single-outlet plus primary circulars rather than fully independent two-outlet verification.
