Einstein’s Theory of General Relativity
How Strong is the Force of Gravity on Earth?
Earth's familiar gravity - which is 9.8 m/s², or 1 g - is both essential to life as we it,…
8 years ago
“Spotters Guide” for Detecting Black Hole Collisions
When it comes to the many mysteries of the Universe, a special category is reserved for black holes. Since they…
10 years ago
Where Have All the Pulsars Gone? The Mystery at the Center of Our Galaxy
The galactic center is a happening place, with lots of gas, dust, stars, and surprising binary stars orbiting a supermassive black…
10 years ago
Remembering the “World War I Eclipse”
The paths of total solar eclipses care not for political borders or conflicts, often crossing over war-torn lands. Such was…
10 years ago
NASA’S NuSTAR Catches a Black Hole Bending Light, Space, and Time
NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) has captured a spectacular event: a supermassive black hole’s gravity tugging on nearby X-ray…
10 years ago