Stars that are one-third to eight times the mass of the Sun (including the Sun) eventually evolve into red giants. (The Sun is thought to be a red giant in 5 billion years) As it expands a lot in this...
When it looked like ice cream, it was half right. Pictured is the ice at the South Pole of Mars (ESA-Mars express probe). But data from the spacecraft's OMEGA device confirms that water, along with CO2 ice, can seep into...
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