Morning Overview on MSN

The universe’s speed limit exposed and why even light is trapped

The universe comes with a built‑in speed cap, a hard limit that shapes everything from how stars shine to how cause and ...
Morning Overview on MSN

‘Difficult to explain’ comet 3I/ATLAS erupts in X-rays after 400,000-km halo appears

Interstellar comet 3I/ATLAS has turned into one of the strangest visitors in the recent history of the solar system, ...