Persistent shock wave around dead star puzzles astronomers

Gas and dust flowing from stars can, under the right conditions, clash with a star's surroundings and create a shock wave.
BBC

Question Time: Council Tax £6,000 refund! £700 saved ditching O2! And a warranty schmarranty winner

In this special ‘Success Time’ edition of our Question Time podcast, this week is all about listeners who’ve saved. They tell us what they’ve done to save, and Martin explains how you can do the same!
BBC

Question Time: Council Tax £6,000 refund! £700 saved ditching O2! And a warranty schmarranty winner

Christmas Special: The best of Question Time! Christmas Special: The best of Martin’s Money Mastermind! 22 December 2025 27 minutes Available for over a year In this special ‘Success Time’ edition of ...
Phys.org

Ultra-high-resolution lidar reveals hidden cloud structures

Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory and collaborators have developed a new type of lidar—a laser-based remote-sensing instrument—that can observe cloud ...