A new paper suggests a primordial black hole may be making things weird at the edge of our solar system.
- Though a Planet 9 has been hypothesized, we can't seem to find it, at least not yet.
- The strange orbits of distant bodies and weird gravitational anomalies beg for an explanation.
- Scientists propose a hunt for telltale gamma rays from a primordial black hole.
The TESS satellite captures rare images of a cataclysmic event in a faraway galaxy.
A well-known cosmologist comes out with very stark warnings about particle accelerators.
- Respected astrophysicist Martin Reese has serious misgivings about the safety of the Large Hadron Collider.
- The collider could destroy us in 3 different ways, warns Reese.
- Despite the dangers, innovation should continue but with caution.
LIGO and Virgo reveal a gravitational wave was detected on two different continents. Here's what that means and why it matters.
The twin Laser Interferometer Gravitational-Wave Observatory (LIGO) is a collaborative effort. It’s basically a group of scientists who use specialized equipment to study gravitational waves. There are currently two such observatories in the US, one in Hanford, Washington and the other in Livingston, Louisiana. They use an interferometer, or a laser-based instrument, to detect even the minutest ripples in space-time as it relates to gravitational waves. The instrument is so delicate, it can pick up distortions one proton in width.
Scientists create a superfluid with negative mass that accelerates backwards.