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— Carl Sagan

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Updated: 2 hours 55 min ago

Astronomers scramble as ‘alien megastructure’ star dims again

8 hours 25 min ago
Tabby’s star’s weird behaviour has been blamed on everything from asteroids to aliens. Now astronomers are racing to watch its dimming in action
Categories: Astronomy

Weird energy beam seems to travel five times the speed of light

12 hours 25 min ago
The galaxy M87 emits a jet of plasma that looks like it’s breaking the cosmic speed limit – here’s how it manages the trick
Categories: Astronomy

Mouse sperm sent into space produces healthy IVF babies

Mon, 05/22/2017 - 4:00pm
The first experiment to test how space travel could affect mammals’ reproduction shows that pregnancy can smooth over DNA damage from cosmic radiation
Categories: Astronomy

LIGO could detect gravitational waves’ permanent space-time warp

Fri, 05/19/2017 - 11:33am
When gravitational waves permanently distort space-time, it causes a “memory” signal – which may help LIGO find some of the universe’s most exotic objects
Categories: Astronomy

Plasma jet engines that could take you from the ground to space

Fri, 05/19/2017 - 9:50am
Jet engines that compress gas into a plasma have been successfully tested at ground level for the first time
Categories: Astronomy

Titan’s riverbeds show a terrain built more like Mars than Earth

Thu, 05/18/2017 - 3:00pm
Saturn’s largest moon resembles Earth with its rivers and mountains, but it came by its topography very differently - and could still be active today
Categories: Astronomy

Odds on: 10 science breakthroughs you can bet on

Thu, 05/18/2017 - 11:15am
Human clones, a colony on Mars, alien contact... what world-changing breakthroughs will come in the next decade? We asked the experts – with some surprising results
Categories: Astronomy

Final demands: We explore sci-fi’s unworldly money troubles

Wed, 05/17/2017 - 11:30am
Humanity may struggle to meet the costs of the futures featured in our round-up of recent science fiction books by Abigail Nussbaum
Categories: Astronomy

The human universe: Does consciousness create reality?

Wed, 05/17/2017 - 11:00am
While not a complete figment of our imagination, the universe may only become real because we're looking at it
Categories: Astronomy

Stars can start shining at a smaller mass than we thought

Wed, 05/17/2017 - 9:30am
Objects with only 6.7 per cent of the sun’s mass can be stars, according to a fresh measurement of how massive an object must be to achieve nuclear fusion
Categories: Astronomy

Neptune-like exoplanet spotted that has a watery atmosphere

Tue, 05/16/2017 - 7:45am
Signs of water in a gas giant exoplanet’s atmosphere suggest the world formed much closer to its star than gas giants in our solar system did
Categories: Astronomy

Microbes might thrive after crash-landing on board a meteorite

Tue, 05/16/2017 - 7:22am
Some extremophile bacteria could survive the a crash-landing of a meteorite or spacecraft, helping them travel between worlds
Categories: Astronomy

What vision of doom made Hawking seek a faster Earth exit plan?

Mon, 05/15/2017 - 12:30pm
Stephen Hawking now says humanity must colonise other worlds within a century, rather than 1000 years, to ensure survival. Why the rush, asks Dirk Schulze-Makuch
Categories: Astronomy

Earth may have been born in a huge flare-up of the young sun

Fri, 05/12/2017 - 9:00am
A sudden brightening of the infant sun – called an FU Orionis outburst – could have melted dust grains and made them stick together, building our world
Categories: Astronomy

Waves surge in opposite directions around Io’s largest lava lake

Wed, 05/10/2017 - 2:00pm
Best ever images of a lava lake on Jupiter’s innermost large moon reveal its surface regenerating itself, sometimes clockwise and sometimes anticlockwise
Categories: Astronomy

First results from Jupiter probe show huge magnetism and storms

Tue, 05/09/2017 - 10:00am
Observations from the Juno spacecraft are confounding astronomers with revelations about the weather and magnetism of our solar system's biggest planet
Categories: Astronomy

Let’s seek traces of ancient indigenous ETs in our own backyard

Fri, 05/05/2017 - 8:59am
The search for aliens beyond our solar system has drawn a blank so far. There is merit in looking closer to home, says Geraint Lewis
Categories: Astronomy

Gravitational waves could show hints of extra dimensions

Fri, 05/05/2017 - 7:00am
Signatures of extra dimensions that don’t normally affect the four dimensions we can observe could show up in the way they warp ripples in space-time
Categories: Astronomy

Watch Cassini’s first two dives between Saturn and its rings

Thu, 05/04/2017 - 4:42pm
New video puts those stunning first images from the Cassini spacecraft's Grand Finale into context in Saturn's cloud tops
Categories: Astronomy

Martian life must be rare as free energy source remains untapped

Thu, 05/04/2017 - 9:39am
The amount of carbon monoxide in Mars’s atmosphere suggests that any existing bacteria that feed on it make up no more than one billionth of Earth’s biomass
Categories: Astronomy