Now playing Next Next Series 'Boom, we have an answer!' - Gaia's revolution in astronomy Astronomy is undergoing a revolution with the release of precision data on 1.7 billion stars in our galaxy from the Gaia space telescope. We head to the historic Observatory of Paris and ESA's ESTEC base in the Netherlands to find out more. 17/05/2018
Now playing Next world news Rare supermoon delights stargazers on New Year's day The impressive supermoon lit up the sky during the first night of 2018. 02/01/2018
Now playing Next world news Scientists strike gold with gravitational waves For the first time scientists have detected gravitational waves, the ripples in space and time predicted by Albert Einstein, with light from the same cosmic event. 17/10/2017
Now playing Next world news Astronomers strike gold with gravitational waves LIGO and Virgo detectors used to spot cataclysmic event scattering gold and platinum into space 16/10/2017
Now playing Next USA Asteroid offers chance to test Earth's alert system Nasa is coordinating global effort to improve tracking of space objects. 11/10/2017
Now playing Next world news Asteroid Florence to skim the Earth tomorrow A space rock named "3122 Florence" is set to pass close to the Earth just after midday tomorrow. 31/08/2017
Now playing Next USA Is this the best solar eclipse photo bomb? A photographer has captured the International Space Station (ISS) silhouetted against the sun. 22/08/2017
Now playing Next USA Eight things we learned from the total solar eclipse Goats, marriage proposals and a boost for Bonnie Tyler. 22/08/2017
Now playing Next USA Total solar eclipse is a "cosmos spectacular" Donald Trump joins millions of Americans to watch one of the cosmos' most rare events - a total solar eclipse 22/08/2017
Now playing Next USA A story to eclipse all others - the first time in 99 years the US goes dark from coast to coast Millions of people across 14 states stood and waited for a rare and rather spectacular total solar eclipse 21/08/2017
Now playing Next USA US gears up for total eclipse The small town of Carbondale, Illinois, is gearing up to become eclipse central, one day before the total eclipse that will cross the continental United States. 21/08/2017
Now playing Next Kazakhstan Astronauts return from ISS France's Thomas Pesquet and Russia's Oleg Novistky return to Earth after long stints in the ISS 02/06/2017
Now playing Next Sci-tech An eye on the sky with a travelling telescope in Kenya Have telescope, will travel. 27/02/2017
Now playing Next world news Exoplanets hint at a Milky Way packed with orbs that resemble Earth Second Earth when and not if says NASA 23/02/2017
Now playing Next USA 4 Reasons why the discovery of the Trappist-1 star system is important NASA announced the discovery of seven planets that could host life like on Earth. 23/02/2017
Now playing Next USA Astronomers find seven Earth-like planets that could host life Astronomers announce the discovery of seven earth-sized planets orbiting a star just 40 light years away from our solar system. 22/02/2017
Now playing Next USA Last man on the moon Gene Cernan dies at 82 Gene Cernan last man on the moon dies at 82 16/01/2017
Now playing Next world news This week meet the Quadrantids: 2017's first meteor shower If you've missed the fireworks of the New Year, don't fret. Mother Nature will give you another opportunity to start 2017 with stars in your eyes 02/01/2017