TED

Started by BillO

New! SUM Speclatron Universe Model

Started by Speclatron

How the size of the Moon was first estimated.

Started by BillO

UFO's on a Flat Earth.

Started by Tron

Asking some friendly questions :)

Started by Thecuriosity

Blue Origins / William Shatner space launch (T-1hour)

Started by Tron « 1 2 »

Current Events

Started by archer

FE and ICBMs

Started by jimster « 1 2 3 ... 21 »

UFO and shooting stars

Started by whatever007

The June Eclipse

Started by JSS

NASA and China sitting in a tree...

Started by AATW

Are we going to just ignore the aliens, then?

Started by Dr David Thork « 1 2 »

Water from cars - check my math

Started by Lord Dave

I have a Math/Physics degree ask me anything

Started by HelloWorld

And Then There Were Five

Started by AATW

Are Flat Earther's Afraid of Aliens?

Started by Ronin « 1 2 »

WATCH LIVE: NASA's Perseverance Rover lands on Mars - Mars Landing Live!

Started by jim22

Coronavirus Successfully Treated by Vitamin C

Started by Tom Bishop « 1 2 3 ... 5 »

I work at the National Aeronautics and Space Administration. Ask me anything

Started by discombobulate « 1 2 »

Gravity’s smallest scale

Started by Rama Set