This Planet is Only Half Covered in Lava

The video explores 55 Cancrea E, also known as Janssen, an exoplanet with extreme conditions. Located 41 light years away, Janssen has a year lasting less than 18 hours, resulting in extreme temperatures. One side of the planet is covered in lava, while the other remains solid. The heat distribution is unusual, possibly due to a thick atmosphere or unique rotation. The James Webb Space Telescope is being used to study Janssen's atmosphere, with early results suggesting the presence of lava rain. The planet may also contain diamonds beneath its surface, making it an intriguing target for future exploration.

What is the temperature range on the lava-covered side of Janssen?

What are the two hypotheses regarding why Janssen's hotter half is not directly facing its star?

How does Janssen's rotation compare to that of Mercury?

What is the significance of the James Webb Space Telescope in studying Janssen?

What potential evidence might indicate that Janssen has a thick atmosphere?