* No Atmosphere: Mercury has almost no atmosphere, meaning it lacks the protective blanket that traps heat and helps regulate temperature.
* Extreme Temperature Swings: This leads to incredibly extreme temperature swings between day and night.
* Daytime: The sun-facing side of Mercury can reach scorching temperatures of around 800 degrees Fahrenheit (430 degrees Celsius).
* Nighttime: On the side facing away from the sun, temperatures plummet to a frigid -290 degrees Fahrenheit (-180 degrees Celsius).
So, there's no set "morning" temperature on Mercury. It's incredibly hot during the day and incredibly cold at night.
Let me know if you have any more questions about Mercury or space!