How a Moon-sized Deep Impact affected early Life on Earth
Do you you want to know how it was like on the early Earth? I can say you this: it probably wasn’t pretty.
Do you you want to know how it was like on the early Earth? I can say you this: it probably wasn’t pretty.
A historic geomagnetic storm and the consequences of a similar event now.
A brief summary of some of the major space missions that are planning to launch in the 2020s.
Astrophysicists and their experiments normally look up, not down. IceCube is an exception. Here the density profile of the Earth is measured using neutrinos.
We can precisely measure chemical abundances for stars. This offers an intriguing possibility that we may, in the near future, start using these measurements to know more about the insides of rocky planets orbiting them.
Strongly magnetized rocks on Mars are primarily concentrated in the southern hemisphere. This paper raises a serious objection to the hypothesis that localized dynamo action in the ancient martian core explains this puzzling observation.