Astronomy
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…
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…
Earth’s Shadow Nicks the Moon During This Week’s Partial Lunar Eclipse
The Moon just brushes the umbral shadow of the Earth during Tuesday night's partial lunar eclipse.
More Bodies Discovered in the Outer Solar System
The outer Solar System has been a treasure trove of discoveries in recent decades. Using ground-based telescopes, astronomers have identified…
Book Review: Is Earth Exceptional?
A new book looks at the latest scientific insights versus a key question in astronomy and space science.
Amateur Astronomer Finds Additional Asteroids With Remote Telescopes
Three amazing recent asteroid finds show what’s possible in terms of astronomy online.
The True Size of Galaxies is Much Larger Than We Thought
Ask most people what a galaxy is made up of, and they'll say it's made of stars. Our own galaxy,…
This Ancient Galaxy Merger Will Produce a very Luminous Quasar
In the contemporary Universe, massive galaxies are plentiful. But the Universe wasn't always like this. Astronomers think that galaxies grew…
Catch a Fall Feast of Lunar Occultations in September
September offers a number of fascinating lunar occultation events worldwide.