A 10 by 14 grid of images, showing bright dots against backgrounds of darkness or white streaks.

Notices where this attachment appears

1. Embed this notice
   Greg Egan (gregegansf@mathstodon.xyz)'s status on Wednesday, 05-Mar-2025 13:10:32 JST Greg Egan

   This is ingenious: astronomers have identified 138 new asteroids just a few tens of metres across by re-analysing JWST images taken for other purposes, shifting and recombining the images to mimic tracking the asteroids and synthesise an effective longer-term exposure.

   https://badastronomy.beehiiv.com/p/hundreds-of-small-asteroids-found-in-the-main-belt-using-jwst