Astronomy

An Astrophysicist Says Isaac Asimov's Legendary Sci-Fi Planet 'Kalgash' Could Be Real

Isaac Asimov's 1990 novel Nightfall takes place on Kalgash, a planet illuminated by a ring of stars that only sees nightfall once...

Chris Mahon
Monday, 09 April 2018 - 12:45PM

It's Your Last Chance to See 'Jupiter's Triangle' in the Night Sky Til 2030

Stargazing into the night sky with a powerful telescope is cool and all, but we prefer the kind of constellation tracking that can be...

Andrew LaSane
Monday, 09 April 2018 - 11:11AM

The Hubble Telescope Finds a Light Warping 'Einstein Ring' in Distant Galaxy Cluster

The galaxy cluster SDSS J0146-0929 is absolutely enormous, with hundreds of galaxies in close proximity and caught in each others'...

Jonathan Kesh
Sunday, 08 April 2018 - 5:01PM

A Ring Inside the Small Magellanic Cloud Conceals a Well-Hidden Neutron Star

As one of the Milky Way's closest neighbors, you would think we'd see an entire star hiding inside the Small Magellanic Cloud, a...

Jonathan Kesh
Saturday, 07 April 2018 - 12:06PM

Astronomers Say They Have Proof the Milky Way Galaxy Is Still Expanding—And No One Can Explain It

There are a couple tenets astronomers and cosmologists live by: light sets the speed limit for the universe, nothing can escape a...

Chris Mahon
Tuesday, 03 April 2018 - 12:37PM

Astronomers Just Found the Most Distant Star Ever Observed: A Giant Blue 'Sun' 9 Billion Light-Years Away

Astronomers can spot supernovas from a galaxy away (even quick ones), but observing individual stars is much harder. In the cosmic...

Chris Mahon
Monday, 02 April 2018 - 12:57PM

Astronomers Discover a Transparent, Seemingly Impossible Galaxy Without Dark Matter In It

Despite how little we know about dark matter, we can tell when it's there, from the way it impacts galaxies and causes strange...

Jonathan Kesh
Wednesday, 28 March 2018 - 6:36PM

New Study Says It's Time for Us to Expand Our Criteria for Finding Alien-Life-Hosting Planets

Drake Equation aside, there's one big obstacle to finding exoplanets that may support life: our own lack of imagination.   For...

Chris Mahon
Wednesday, 28 March 2018 - 1:03PM

'Cultural Astronomy' May Finally Explain the Secret Purpose of Stonehenge and the Pyramids

For thousands of years, mankind has marveled at the impressive structures built by prehistoric civilizations and puzzled over how and...

Andrew LaSane
Tuesday, 27 March 2018 - 10:54AM

Scientists Just Observed One of the Fastest, Brightest Supernovas in History

Supernovas pack a lot of punch, to put it lightly--they can outshine galaxies and expel more energy than our Sun's lifetime output,...

Chris Mahon
Monday, 26 March 2018 - 1:02PM

The Mysterious Tabby's Megastar Just Dimmed Again—Are Aliens Making Contact or Is It Just 'Cosmic Dust'?

Though KIC 8462852, also known as Tabby's star, is probably not host to an alien megastructure like a Dyson Sphere or an orbiting...

Chris Mahon
Monday, 26 March 2018 - 11:31AM

Brown Dwarfs Are Seen as Both Failed Stars and Giant Planets

Most of the time, the difference between a star and a planet is pretty clear: a star is a huge ball that burns hydrogen and...

Jonathan Kesh
Saturday, 24 March 2018 - 5:08PM

NASA Shows Off a Supernova Remnant Called The 'Jellyfish Nebula'

Lots of cosmic objects are given interesting nicknames, from the Cartwheel galaxy to the "Penguin and Egg" galaxy. So perhaps it...

Jonathan Kesh
Saturday, 24 March 2018 - 12:55PM

Rocket Lab's Giant Space Disco Ball 'Humanity Star' Incinerated as It Fell Back to Earth Ahead of Schedule

Back in January, New Zealand-based spaceflight company Rocket Lab launched a controversial satellite called the Humanity Star into...

Super User
Thursday, 22 March 2018 - 2:00PM

Scientists Discover Most of the Gold in the Milky Way Galaxy Was Created by Neutron Star Explosions

If you took all of planet Earth's supply of gold, melted it down (minus impurities), and attempted to fill as many Olympic-sized...

Matthew Loffhagen
Thursday, 22 March 2018 - 11:26AM

Astronomers Say Math Proves There's a Super-Earth-Sized Ninth Planet Hiding Beyond Pluto at the Edge of Our Solar System

No, it's not Pluto. Unfortunately for die-hard astronomy fans, Pluto is still languishing in its dwarf planet classification, and now...

Chris Mahon
Thursday, 22 March 2018 - 10:57AM

Trappist-1 Can't Support Life: Scientists Discover Exoplanets Have Too Much Water

In the search for alien life, liquid water always seems to be the Holy Grail. Oceans are even better--oceans mean a lot of water and...

Chris Mahon
Tuesday, 20 March 2018 - 11:12AM

NASA Has Fired Up a New Tool For Staring Directly at the Sun

Fact: staring directly at the sun is a bad idea. The bright light from our planet's star can cause genuine retinal damage to anyone...

Matthew Loffhagen
Friday, 16 March 2018 - 1:03PM

Jupiter's Giant Red Spot Isn't Just Shrinking—It's Getting Taller and Turning Orange

Some things in our solar system never change. Saturn? It has those cool rings. Neptune? Has that cool blue color. Jupiter? Has a giant...

Chris Mahon
Wednesday, 14 March 2018 - 11:35AM

Astronomers Say Aliens Sending Us Signals Will Be Long Dead Before Their Messages Arrive

In a time of instant messaging and the ability to circulate data around the world with a minimal delay, sending and receiving...

Andrew LaSane
Wednesday, 14 March 2018 - 11:32AM