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A recent study shows that the Earth's water could come directly from the oxygen and hydrogen present in the rocks that formed it, and not from a late supply by asteroids.
It's all to do with the light from the Sun and a blanket of air wrapped around Earth called the 'atmosphere'.
From the birth of Jesus Christ to Newton's discovery of gravity, great conjunctions of Jupiter and Saturn have many notable connections in human history.
The 2020 winter solstice is also when Saturn and Jupiter appear closest to each other for 60 years, Here's what you need to know about both the events.
Scientists hope samples of asteroid Ryugu may reveal traces of the chemical ingredients that formed life on Earth.
Unlike our hellish neighbour Venus, Earth was far enough from the Sun for liquid water to form and create a more hospitable environment for life.
After two decades as a home to astronauts, the International Space Station still has plenty to teach us about how humans can live away from Earth.
Bennu will tell us about our own origins as much as about the origin of asteroid Bennu.
OSIRIS-REx will touch down on asteroid Bennu, collect a sample of the dust and begin its journey back to Earth, where scientists will study it, hoping to learn secrets of the solar system's origin.
Three newly discovered bodies of liquid water deep beneath the south polar ice cap on Mars have planetary scientists intrigued.
The clouds of Venus may harbour alien life. But where else?
A small asteroid will cross Earth's orbit on November 2. Scientists aren't sure if the two will collide – but even if they do, there's still no cause for alarm.
Pluto began hot inside, study of its surface fractures suggests
In the search for the hypothetical Planet Nine, scientists may have uncovered another explanation for the patterns in the orbits of Kuiper Belt objects.
The Earth and the Moon were long thought to be virtually identical in composition. Now we know they are not.
Earth currently has a second moon - but it won't stay long.
Why isn't there an endless variety of planets in the universe? An astrophysicist explains why planets only come in two flavors.
Saturn's largest moon has been fully mapped for the first time.
Astronomers have found 20 new moons around Saturn, and will keep finding more as technology improves.