
Sign up to save your podcasts
Or


New analysis of radioisotopes of meteorites and the Earth suggest the Earth formed in only a few million years via a process called pebble accretion. This may mean the Earth's water was incorporated early and gradually rather than through late impacts. Recent determinations of the historical length of the Earth's day suggest it stalled out at 19 hours for a cool billion years, and we still have a ways to go to get to 25 hours when we can all sleep in. Find out about the Earth's history, supermassive black hole mergers, and syzygy trivia.
By Joshua Colwell, Adrienne Dove, and James Cooney4.8
116116 ratings
New analysis of radioisotopes of meteorites and the Earth suggest the Earth formed in only a few million years via a process called pebble accretion. This may mean the Earth's water was incorporated early and gradually rather than through late impacts. Recent determinations of the historical length of the Earth's day suggest it stalled out at 19 hours for a cool billion years, and we still have a ways to go to get to 25 hours when we can all sleep in. Find out about the Earth's history, supermassive black hole mergers, and syzygy trivia.

349 Listeners

1,345 Listeners

323 Listeners

835 Listeners

2,881 Listeners

570 Listeners

233 Listeners

2,360 Listeners

331 Listeners

381 Listeners

163 Listeners

75 Listeners

105 Listeners

151 Listeners

73 Listeners