- I'm Jackie Faherty from the American Museum of Natural History.
Let's answer your questions from the internet.
This is "Cosmology Support." [upbeat music] @EagleJomeur asks, "Hey Siri, how old is the universe?" The universe is roughly 14 billion years old, and we get to that answer by looking out into the cosmos and seeing the most distant things that we can.
The most distant thing in the observable universe is the Cosmic Microwave Background radiation.
That's the signal of the Big Bang.
And right behind me, we have a representation of what the Cosmic Microwave Background radiation looks like.
Bluer colors or redder colors, showing tiny temperature fluctuations for what might have been going on about 13.8 billion years ago.
@Purposefullylit asks, "So did we decide if 3I Atlas is a comet or an alien ship at this point?
I'm trying to see if I need to get my life together." You need to get your life together.
It's just a comet.
