Five billion years ago — give or take — a pair of black holes approached their mutual destruction. They'd been circling each other for a long, long time, but that was about to end. Gradually spiraling closer together over eons, the process...
Neil deGrasse TysonWe discover hundreds of Comets each year. Occasionally a bright one comes along.
This week, look northwest, low in the sky at dusk for Comet NEOWISE (@c2020f3)
Seen a few days ago, “rising” above Earth, from the orbiting International @Space_Station.
What does our future look like? Neil deGrasse Tyson, comic co-host Maeve Higgins, and astrophysicist and author Sir Martin Rees ponder our fate.
Neil deGrasse TysonPlease join me in welcoming @LordMartinRees to Twitter, the Astronomer Royal of the UK and long-time colleague & friend.
He’s a brilliant astrophysicist whose deep perspectives on all things I continue to admire.