60-Second Astro News: A Carnivorous Quasar and a Galaxy Ghost
In astronomy news this week: The most luminous quasar known in the cosmos is devouring three galaxy companions, while a newly discovered ghostly satellite of the Milky Way hints at hordes more just waiting to be found.
Evidence Mounts for a Magellanic Collision
Astronomers have suspected for some time that the Large and Small Magellanic Clouds collided in the recent past. The Gaia space telescope provides striking new evidence for a head-on collision.
'Oumuamua’s Story Keeps Spinning
Two new studies question the cometary nature of 'Oumuamua, our first interstellar visitor, and where in the Galaxy it might have come from.
Gaia Maps 1.7 Billion Stars, Widens Cosmic Census
With its second data release, the European Space Agency's Gaia satellite has redefined the way we look at our galaxy.
Gaia Mission Maps 1 Billion Stars
The European Space Agency's Gaia mission has released its first data release, mapping a billion stars across the Milky Way and beyond
Twin Stars Simplify Distance Measurements
A new technique that relies on identifying stellar twins yields a novel way to measure the distances to stars.