from the world's big
From anti-gravity pens to cool model kits, these space-themed gifts will make any star gazer very happy.
- Since the dawn of time humans have been fascinated with the stars and with space.
- This gift guide will help you shop for the NASA fan on your list.
- From socks to laser projectors, there is something for space fans of all ages.
What can cause a ripple in both space and time? Neutron stars colliding. And what can observe that phenomenon? A two-mile-long laser.
Michell Thaller, the Assistant Director of Science Communication at NASA, wanted to talk to us about a heavy subject matter. Specifically, super-dense neutron stars that are so dense that they're only the size of New York City but carry the weight of the sun. And when they circle each other in orbit for long enough, they collide with enough force to send ripples in both space and time. Those ripples alone are strong enough to alter the course of light. In fact, just a few years ago a rare astronomical event occurred where you'd have seen a star "blink" for a few minutes on and off before disappearing for good. Scientists are able to detect these gravitational ripples thanks to a LIGO, or a Laser Interferometric Gravitational-Wave Observatory, which measures the refraction of light based on gravity waves. Oh, and one more thing: Albert Einstein correctly deduced that this phenomenon years before it was ever recorded. If you'd like to know more, visit NASA.
Two Canadian astronomers publish a paper with an extraordinary claim of possibly detecting alien signals.
Two Canadian astronomers published a study that claims an anomaly in the pulsing of a group of stars is possibly evidence of an alien civilization. It’s easy to be skeptical of any such proposals but the scientists really do consider an extraterrestrial involvement as one of the potential explanations to what they’ve observed.