gravity

19 08, 2017

Supernova – Space – Astronomy

By |2018-05-31T11:49:31-07:00August 19th, 2017|Physics|Comments Off on Supernova – Space – Astronomy

Supernova from space (thanks to NASA and the Hubble Telescope) What is a supernova? Supernovas are exploding stars. Red giant stars explode when they have used up their hydrogen and helium fuel, and converted most of their atoms to iron [...]

19 08, 2017

What are planets? Astronomy – Space science

By |2018-09-10T17:46:23-07:00August 19th, 2017|Physics|Comments Off on What are planets? Astronomy – Space science

What are planets? The planet Venus from space Before there were planets For several hundred million years after the Big Bang, there were no planets, only stars. Planets couldn't form until the [...]

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