The Early Universe Had a Lot of Black Holes
The Hubble Deep Field and its successor, the Hubble Ultra-Deep Field, showed us how vast our Universe is and how it teems with galaxies…
SETI Scientists Scan TRAPPIST-1 for Technosignatures
If there's an advanced civilization in the TRAPPIST-1 system living on multiple worlds, there's a way to eavesdrop on their…
A Star Was Kicked Out of a Globular Cluster by an Intermediate-Mass Black Hole
Astronomers have solid evidence for the existence of stellar-mass black holes and supermassive black holes. However, evidence for Intermediate Black…
Astronomers Have Found a Star with a Hot Jupiter and a Cold Super Jupiter in Orbit
Located in the constellation Ursa Major, roughly 300 light-years from Earth, is the Sun-like star HD 118203 (Liesma). In 2006,…
Future Gravitational Wave Observatories Could See the Earliest Black Hole Mergers in the Universe
In February 2016, scientists at the Laser Interferometer Gravitational-wave Observatory (LIGO) confirmed they made the first-ever detection of gravitational waves…
Could You Find What A Lunar Crater Is Made Of By Shooting It?
Americans are famously fond of their guns. So it should come as no surprise that a team of NASA scientists…
There are Plenty of Uses for Powerful Lasers in Space. But Where Should We Put Them?
Is it time for space lasers yet? Almost. As time passes, ideas that were once confined to the realm of…
There Could be a Way to Fix Spacecraft at L2, Like Webb and Gaia
Billions of dollars of observatory spacecraft orbit around Earth or in the same orbit as our planet. When something wears…
Could We Find Primordial Black Holes in the Solar System?
One possible explanation for dark matter is primordial black holes. These are lower-mass black holes formed in the first moments…
Earth Might Have Had Rings Half a Billion Years Ago
Saturn is well known for its ring system and many recognise that the planets Jupiter, Uranus and Neptune also have…