来自MSN27 天
What If The Earth Had Two Moons?
"What if our Moon had a twin? Seeing not just one, but two of these satellites in the night sky might be spectacular. Let's assume our second moon would be around 1, 000 km (620 miles) wide and ...
Yahoo News25 天
The moon may be more than 100 million years older than previously thought, study finds
The moon may be more than 100 million years older than some scientists previously ... and then experienced a dramatic “re-melting” event at the time other scientists had assumed it first formed. The ...
Space.com26 天
The moon may be 100 million years older than we thought
The moon may have received a volcanic facelift, making it more than 100 million years older than ... between a collision between the newborn Earth and a Mars-size rock dubbed Theia, the last ...
Yahoo25 天
The moon may be more than 100 million years older than previously thought, study finds
The moon may be more than ... event at the time other scientists had assumed it first formed. The melting occurred as the moon was moving away from the Earth, the authors say, when the planet ...