Articles on Exoplanets

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An artist’s conception of WISE J0855-0714. NASA, JPL-Caltech and Penn State University

Say hello to our new close – but cold – neighbour in space

Author Douglas Adams famously had his Hitchhiker’s Guide to the Galaxy remark that “space is really big”. But to my mind the sheer vastness of space is better encapsulated in the recent announcement of…
Beta Pictoris b spins faster than the fastest spinning planet in our solar system. ESO/L. Calçada & N. Risinger (skysurvey.org)

A different spin – exoplanet’s ‘day’ is measured for the first time

Over the past two decades, almost 1,500 exoplanets have been discovered orbiting distant stars – but Dutch astronomers have determined for the very first time just how fast one of those exoplanets is spinning…
Aliens will only ever be toys for us. bflv

Search for alien life could remain fruitless, study finds

Given that we are unlikely to be visiting an exoplanet any time soon, astronomers have been contemplating whether it might be possible to detect indications of simple life – a biosignature – from a distance…
Shooting for the exomoon. CBC11

Move over exoplanets, exomoons may harbour life too

In the Star Wars universe, everyone’s favourite furry aliens, the Ewoks, famously lived on the “forest moon of Endor”. In scientific terms, the Ewok’s home world would be referred to as an exomoon, which…
Let’s hope it’s barren. NASA Ames/SETI Institute/JPL-CalTech

Habitable exoplanets are bad news for humanity

Last week, scientists announced the discovery of Kepler-186f, a planet 492 light years away in the Cygnus constellation. Kepler-186f is special because it marks the first planet almost exactly the same…
The Automated Planet Finder is hunting planets all by itself. Laurie Hatch

Telescope apps help amateurs hunt for exoplanets

People around the world are being invited to learn how to hunt for planets, using two new online apps devised by scientists at the University of Texas at Austin and UC Santa Cruz. The apps use data from…
The Gemini South telescope – pictured here – houses the latest gear to hunt down and snap photos of exoplanets. Gemini Observatory

Gemini Planet Imager – a new eye to scan the sky for exoplanets

There is excitement in astronomy and planetary science departments worldwide as the new Gemini Planet Imager, housed in the Gemini South Telescope in the Chilean Andes, turns its razor-sharp gaze to the…
Maybe pink planets have life too. gsfc

Explainer: how do you find exoplanets?

Astronomers didn’t know, 20 years ago, whether planets existed around any stars other than the Sun. All that changed in 1995 with the discovery of an exoplanet orbiting the star 51 Pegasi. And by the beginning…
The giant planet Kepler-34b orbits round two stars. Now that’s just greedy. David A. Aguilar

Star Wars planets migrate into position around stellar pairs

Planetary science is beginning to catch up with science fiction. Since the launch of the Kepler space telescope in 2009, a deluge of planets outside of our solar system has been found, with many oddball…
Kepler 78b is a lot like Earth…if Earth was on fire. TORLEY/Flickr

Almost Earth – another step on the road to habitable worlds

Two papers were published today in Nature, each independently revealing that a planet discovered by the Kepler mission is the closest thing we’ve found yet to another Earth. But don’t pack your bags just…
Rocky, water-rich asteroids and similar objects likely delivered the bulk of water on Earth. Now they’re being found well outside our Solar system. Mark A. Garlick, space-art.co.uk, University of Warwick and University of Cambridge

Watery asteroid gobbled up by a white dwarf: implications for life

How will future alien scientists know whether life existed in our solar system? One method may be to sift through the planetary debris left when our sun becomes a white dwarf. Astronomers are doing just…
Not just a pretty planet – Jupiter may provide clues for detecting Earth-like planets. NASA

By Jove! Can climate change lead us to life on other planets?

Thanks to the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report, we’ve recently heard a great deal about how the Earth’s climate is changing. The IPCC’s cautious assessment of the…
New analysis suggests yes, Fomalhaut b is real after all. NASA

New study challenges exoplanet doubts

A new study of data from NASA’s Hubble telescope shows that the distant star Fomalhaut b really is a massive exoplanet and squashes claims made last year that it was just a dust cloud, researchers said…
Alpha Centauri is the closest star system to our own sun and appears to be home to at least one planet. EPA/Davide De Martin/ESO

Alpha Centauri exoplanet is the closest ever – how was it found?

Earlier this week, a Swiss-based team searching for planets outside our solar system (exoplanets) published a paper in Nature announcing the detection of an Earth-mass planet orbiting the star Alpha Centauri…

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