- Joined
- Mar 2, 2009
- Messages
- 5,061 (0.91/day)
Processor | AMD Ryzen 5 7600 |
---|---|
Motherboard | Gigabyte B650 Aorus Elite AX |
Cooling | Thermalright Peerless Assassin 120 SE |
Memory | Kingston Fury Beast DDR5-5600 16GBx2 |
Video Card(s) | Gigabyte Gaming OC AMD Radeon RX 7800 XT 16GB |
Storage | TEAMGROUP T-Force Z440 2TB, SPower A60 2TB, SPower A55 2TB, Seagate 4TBx2, Samsung 870 2TB |
Display(s) | AOC 24G2 + Xitrix WFP-2415 |
Case | Montech Air X |
Audio Device(s) | Realtek onboard |
Power Supply | Be Quiet! Pure Power 11 FM 750W 80+ Gold |
Mouse | Logitech G304 |
Keyboard | Redragon K557 KAIA RGB Mechanical Keyboard |
Software | Windows 10 |
A tiny second moon may once have orbited Earth before catastrophically slamming into the other one, a titanic clash that could explain why the two sides of the surviving lunar satellite are so different from each other, a new study suggests.
The second moon around Earth would have been about 750 miles (1,200 kilometers) wide and could have formed from the same collision between the planet and a Mars-sized object that scientists suspect helped create the moon we see in the sky today, astronomers said.
The gravitational tug of war between the Earth and moon slowed the rate at which it whirls, such that it now always shows just one side to Earth. The far side of the moon remained a mystery for centuries until 1959, when the Soviet Luna 3 spacecraft first snapped photos of it. (The far side is sometimes erroneously called the dark side, even though it has days and nights just like the near side.)
full article here
The second moon around Earth would have been about 750 miles (1,200 kilometers) wide and could have formed from the same collision between the planet and a Mars-sized object that scientists suspect helped create the moon we see in the sky today, astronomers said.
The gravitational tug of war between the Earth and moon slowed the rate at which it whirls, such that it now always shows just one side to Earth. The far side of the moon remained a mystery for centuries until 1959, when the Soviet Luna 3 spacecraft first snapped photos of it. (The far side is sometimes erroneously called the dark side, even though it has days and nights just like the near side.)
full article here