Cosmology
Quasars with a Double-Image Gravitational Lens Could Help Finally Figure out how Fast the Universe is Expanding
How fast is the Universe expanding? That's a question that astronomers haven't been able to answer accurately. They have a…
Astronomers Count all the Photons in the Universe. Spoiler Alert: 4,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 Photons
Imagine yourself in a boat on a great ocean, the water stretching to the distant horizon, with the faintest hints…
We May Soon Be Able To See the First, Supergiant Stars in the Universe
We need to talk about the dark ages. No, not those dark ages after the fall of the western Roman Empire.…
Whoa. That’s the Milky Way, Bouncing off the Moon in Radio Waves
The universe wasn't always such a well-lit place. It had its own Dark Ages, back in the days before stars…
Gravitational waves were only recently observed, and now astronomers are already thinking of ways to use them: like accurately measuring the expansion rate of the Universe
Neutron stars scream in waves of spacetime when they die, and astronomers have outlined a plan to use their gravitational …
Has a New Dwarf Galaxy Been Found Hiding Behind Andromeda?
Thanks to the work of an amateur astronomer, an international team of scientists recently confirmed the existence of a previously-unknown…
Gravitational Waves Might be the Key to Finding Dark Matter
Exotic dark matter theories. Gravitational waves. Observatories in space. Giant black holes. Colliding galaxies. Lasers. If you're a fan of…
What is the Cosmic Microwave Background?
For thousands of years, human being have been contemplating the Universe and seeking to determine its true extent. And whereas…
If There is a Multiverse, Can There be Life There Too?
In a series of new studies, an international team of researchers found that if we live in a multiverse, it…
Here’s Stephen Hawking’s Final Theory About the Big Bang
Stephen Hawking's final theory, which was recently published, offers an new take on the Big Bang Theory that could revolutionize…