The discovery of 55 Cancri e means ground-based telescopes could be used to find new "super-Earths".
Researchers believe a newly discovered galaxy is the solution to the mystery of missing stars.
Scientists in Europe announced the landing of a robot lab Philae on comet 67P/Churyumov-Gerasimenko, enabling it to send back scientific information.
Scientists turned to digital modelling to study the Dreadnoughtus dinosaur and have finally defined where our galaxy is in the universe.
Nasa's Stardust probe collected exotic particles in its cosmic flypaper after a manic comet chase.
The countdown for a one-way trip to the Red Planet has begun and several South Africans want to go.
Gravity measurements taken by a Nasa spacecraft indicate that a small moon orbiting Saturn contains an underground ocean in its southern hemisphere.
The latest big thing in science will also permit analysis of how much dark energy drove the inflation of the universe.
In a major discovery for understanding the origins of the universe, US scientists say they have detected echoes of the Big Bang 14-billion years ago.
Our list of exoplanets grew by 700 last week – but how many might be habitable?
An unmanned rocket has blasted off from Cape Canaveral to put the newest member of Nasa's space communications network into orbit.
Florence Porcel, a Frenchwoman living in Paris, would give anything to live on Mars, saying she has always felt "a bit cramped on Earth".
Space station astronauts have repaired a crippled cooling system during a rare Christmas Eve spacewalk.
This year bought very little cheer, so the Mail & Guardian trawled far and wide to find two handfulls of news that brought a smile to our faces.
Those who think developing nations can better spend money used for space exploration are "just wrong", says former Nasa astronaut Mae Jemison.
Dr Mae Jemison, the first African-American woman in space, says developing countries should be involved in space exploration.
Some interesting discoveries in the world of science.
Two astronauts aboard the International Space Station have begun a spacewalk to try to fix an ammonia leak in a cooling system.