I have a question regarding time dilation that I thought of last night listening to an audiobook, Project Hail Mary. I am an amateur astrophotographer, and marvel at the distance to deep-space objects ...

In this video I show you what it would look like to slow the speed of light down to around walking speed. So with just ...

If you’re concerned about getting every microsecond out of life, then you might not want to migrate to Mars. Using extremely ...

My telescope, set up for astrophotography in my light-polluted San Diego backyard, was pointed at a galaxy unfathomably far from Earth. My wife, Cristina, walked up just as the first space photo ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why does time change when traveling close to the ...

Robin Zabiegalski (they/them) is a queer, non-binary writer with over eight years of experience writing for digital media. Robin previously covered Star Trek for Heavy.com and has interviewed several ...

Science fiction authors and readers dream of travelling at the speed of light, but Einstein tells us we can’t. You might think that’s an arbitrary rule, but [FloatHeadPhysics] shows a different way to ...