View at EarthSky Community Photos. | The lunar maria – once thought to be seas – are dark, flat basaltic plains where lava flowed into ancient impact basins and then cooled and hardened. A new study of lunar samples from China’s Chang’e 5 mission says the moon’s volcanoes were active for much longer than previously thought, as recently as 120 million years ago. Image via Talha Moon.
- The moon was a volcanically active world billions of years ago. But could it have had active volcanoes more recently too?