Ask Ethan: Could evolving dark energy lead to a Big Crunch?
Current observations suggest dark energy may be evolving and possibly weakening, which reopens the previously discarded possibility of a future Big Crunch.
Ask Ethan: Where are we located relative to the Big Bang?
Uniform redshift–distance relation in all directions shows cosmic expansion; directional redshift differences cannot locate a single spatial origin of the Big Bang.
Double-detonation supernova may set universal candles alight
The explosions of white dwarfs play a crucial role in astronomy, yet, despite their importance, the long-standing puzzle of the exact mechanism triggering their explosion remains unsolved.
