What is the Big Bang?

In the view of modern cosmologists, the Big Bang is the event that marked the birth of our universe. What was it - when was it - and what are modern theories?

Biggest asteroid to pass close (and undetected) this year

Asteroid 2020 LD passed within the moon's distance on June 5, but wasn't discovered until June 7. It's the 45th known and the largest asteroid to sweep within a lunar-distance of Earth so far in 2020.

A 2nd exoplanet confirmed for Proxima Centauri

Astronomers at McDonald Observatory have confirmed a second planet - 7 times more massive than Earth - orbiting Proxima Centauri, the closest star to our sun.

New ‘climate decoder’ to study potentially habitable exoplanets

What is the climate like on some potentially habitable exoplanets? Scientists have developed a new "decoder" to find out.

Did ancient Mars have rings?

A new study of Mars' smallest moon Deimos, by scientists from the SETI Institute and Purdue University, suggests that the planet used to have rings a few billion years ago.

Black holes are like a hologram

The theory of relativity describes black holes as being spherical, smooth and simple. Quantum theory describes them as being extremely complex and full of information. New research now proposes a surprising solution to this apparent duality.

Did galactic crash trigger solar system formation?

The formation of the sun, the solar system and the subsequent emergence of life on Earth may be a consequence of a collision between our galaxy - the Milky Way - and a smaller galaxy called Sagittarius.

How often are there 3 eclipses in a month?

We last had 3 eclipses in one lunar month in 2020. It'll next happen in the year 2029. From 2000-2050, there are 3 eclipses in one lunar month 14 times. Meanwhile, in a calendar month, 3 eclipses are rare.

Has mystery of universe’s missing matter been solved?

Cosmologists have only been able to find half the matter that should exist in the universe. With the discovery of a new astronomical phenomenon and new telescopes, these researchers say they've just found the rest.

SpaceX Crew Dragon is docked with ISS

History was made again Sunday, with the successful docking of SpaceX Crew Dragon with the International Space Station. Astronauts Bob Behnken and Doug Hurley are aboard. There are more activities to come, which you can watch online. Links here.