NBC News - What are gravitational waves?

NBC News - What are gravitational waves?

Gravitational Waves explained in 30 seconds or less. BOOM.

Scientists say they've detected gravitational waves. So what does that mean? Columbia University Astrophysicist Summer Ash explains.
Week in Geek - Ripples in spacetime

Week in Geek - Ripples in spacetime

Week in Geek - Mirror, mirror

Week in Geek - Mirror, mirror