Guest: Professor Dagomar Degroot, environmental historian at Georgetown University and author of Ripples on the Cosmic Ocean: ...

When asteroid 2024 YR4 first revealed itself to humans on 27 December 2024, it seemed to have just shown up out of nowhere. An entire asteroid doesn't just materialize out of nothing, though, and now ...

At the ripe age of five, it is clear that the United States Space Force, while dominated by old thinking, still doesn’t know what it wants to be when it grows up, and is split among multiple different ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Dagomar Degroot, Georgetown University (THE CONVERSATION) In May 2024, part of the Sun ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) The Sun is an immense ball of superheated gas called plasma. Because the plasma is ...

Dagomar Degroot has received funding from NASA. In May 2024, part of the Sun exploded. The Sun is an immense ball of superheated gas called plasma. Because the plasma is conductive, magnetic fields ...