Are Black holes pure gravity?
No. Gravity isn’t a physical material so nothing can be made of it. Gravity is the attractive force created by the mass of an object. Black holes are stars that…
No. Gravity isn’t a physical material so nothing can be made of it. Gravity is the attractive force created by the mass of an object. Black holes are stars that…
Martian meteorite NWA 7533 is worth more than its weight in gold. Credit: © NASA/Luc Labenne A meteorite that originated on Mars billions of years ago reveals details of ancient…