Tag: Planets
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Osiris-Rex: A sample brought to Earth from an asteroid by NASA shows signs of water and carbon.
On September 24 this year, a Nasa capsule parachuted down to Earth carrying a precious cache of material grabbed from an asteroid. The space...
How are the ages of the planets and stars determined by astronomers?
Measuring the ages of planets and stars helps scientists understand when they formed and how they change – and, in the case of planets,...
What causes the Earth to rotate?
A globe was the first thing I ever bought with my own money. I was maybe 5 years old, and I was really excited...
What is a dwarf planet, exactly?
The word “planet” came from the ancient Greek words that mean “wandering star.” That makes sense, because for thousands of years, people have watched...
