earth
Can we live in space? Can humans live on moon or Mars colony?
Tucked away in high-tech laboratories, a team of 30 researchers are studying new ways to keep humans alive on a potential moon or Mars.
Astronomers discover galaxy without dark matter
The discovery could revise or even upend theories of how galaxies are formed.
Self-taught rocket scientist blasts off into California sky
"Mad" Mike Hughes, the rocket man who believes the Earth is flat.
Spacerock that can end life on Earth can't be stopped by Nasa, say scientists
Researchers say it might be impossible to stop the space rock, the size of the Empire State building, from crashing into Earth in 2135.
Upcoming new moon is the perfect time for stargazing
It's also invisible, because the sun is illuminating the side of the moon that always faces away from Earth.
Jupiter's mystery jet-streams run deeper than thought: study
Its north pole is dominated by a central cyclone surrounded by eight circumpolar cyclones.
Moon formed from donut-shaped cloud of vapourised rock: study
Tests have shown that the Moon is far less abundant in many volatile elements that are relatively common on Earth.
Secret behind perfect alignment of Egypt's Pyramids decoded
For over a century, researchers have proposed different methods used by the ancient Egyptians to align the pyramids.
Humans will be happy if aliens come to Earth, finds study
Research shows that people are far more positive in their thoughts about meeting extraterrestrials than previously thought.
One-two punch may have wiped out dinosaurs: Study
University of Oregon researchers conducted the study.