Dutch astronomer Jan Oort was born on April 28, 1900. He visualized a vast reservoir of icy comets on the fringes of our solar system, which now bears his name.
25 years ago on April 1, 1997, Comet Hale-Bopp was at perihelion, its closest point to the sun. This comet - remembered by many - was the last widely seen comet from the Northern Hemisphere.
An exotic effect in particle physics, theorized to occur in immense gravitational fields — near a black hole, or in conditions just after the Big Bang — has been seen in laboratory crystal.
She was an outstanding mathematician and first woman to receive the prestigious Fields Medal. Maryam Mirzakhani died on July 14 after a several-year battle with breast cancer.
New evidence suggests the well-known Wow! signal from 1977 - long thought by some to be a sign of extraterrestrial life - was in fact generated by a passing comet.
Stars are incredibly bright in contrast to any planets that may be orbiting them. So finding exoplanets - planets orbiting distant suns - isn't easy. Here's how it's done.
Daniela Breitman - a Canadian writer, formerly with From Quarks to Quasars - is currently studying Applied Sciences with the goal of becoming an astrophysicist. An amateur photographer, she also loves writing and literature and is a huge science fiction fan. In fact, she's passionate about many things.