Mysterious gas giant is about 1,000 light years away.
Mark Garlick/University of Warwick.
Ruby and sapphire clouds may be hovering over exoplanet HAT-P-7b.
An artist’s impression shows the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to our solar system.
Astronomers have found an Earth-like planet orbiting our nearest neighbour, the red dwarf star Proxima Centauri. So any chance that planet may be habitable?
The ruddy hue of our moon in a total lunar eclipse.
The red hue of the moon during a total lunar eclipse gives astronomers at cue on how to find out more about the planets being discovered around other stars.
An artist’s impression of the polar orbit of WASP-79b.
More than three thousand planets have been found orbiting other stars in our galaxy. The challenge now is to find out more about these planets.
Some of the Earth’s fault lines between tectonic plates in the East Asia region.
Earth is the only planet in our solar system with both plate tectonics and life. Is there a connection?
An artists’s impression of how common planets are around the stars in the Milky Way.
A look at some of the more obscure methods astronomers use to detect planets around other stars, in the second of a two-part series on finding world's elsewhere in the universe.
In the Exoplanet Era, we are learning that planets abound in the cosmos.
Astronomers have discovered more than 3,000 planets around other stars, so far. In the first of a two-part series we look at how they find world's elsewhere in the universe.
Artist’s impression of Planet Nine.
Tomruen, nagualdesign; background taken from File:ESO
Why Planet Nine should be found in the next few years ... if it exists.
An artist’s impression of a transiting Jupiter-mass exoplanet around a star slightly more massive than the sun.
Many of the new planets found in other star systems have some extraordinary orbital behavior. So what's going on?
An artist’s concept of select planetary discoveries made to date by NASA’s Kepler space telescope.
The number of known exoplanets doubled this week to more than 3,200. But why have only a handful of these those new planets caught people's imagination?
Imagined view from the surface of one of the newly discovered planets, with ultracool dwarf star TRAPPIST-1 in the background.
We don't need to look for Earth-like planets exclusively around Sun-like stars. Tiny, dim TRAPPIST-1 has only 11 percent the diameter of the Sun and is much redder.
The plan to use lasers to send mini-spaceships to the stars.
It's an ambitious plan to send a micro-spaceship to our stellar neighbour but is this possible with today's technology or even technology in the near future?
Alpha Centauri is actually the outer star (bottom right) of The Pointers, which point to the Southern Cross.
Y. Beletsky (LCO)/ESO
A US$100-million plan has been announced to send tiny probes out in space in search of life elsewhere in the universe. But are they looking in the right place?
An artist’s illustration of Kappa Ceti whose stellar winds are 50 times stronger than our sun’s. Any Earth-like planet would need a magnetic field to protect its atmosphere if it was to stand a chance of hosting life.
In the search for life on other planets in the universe we need to find the right kind of star, and it needs to have the right kind of space weather.
If you’re looking for life, you’d do well to look for some moons.
As the list of known planets beyond our solar system grows, the search for their moons is intensifying. One reason: they might hold the key to finding life elsewhere in the universe.
The light shining through an exoplanet’s atmosphere can give us a hint of whether the planet supports life.
NASA, ESA, and G. Bacon (STScI)
A hint of oxygen and a whiff of methane in a distant exoplanet's atmosphere may be the first evidence we discover of alien life.
Pretty picture (artist’s impression) but unlikely scenario.
Why the new exoplanet said to resemble out Earth might just as well resemble Venus or Neptune.
A new exoplanet has been discovered that is a lot like Earth.
The Kepler satellite discovers exoplanets by measuring the light drop from a star when a planet moves in front of it. Maths can uncover many more exoplanets.
Australian National University and the Niels Bohr Institute
The search for life on other planets gets a boost thanks to an old calculation that found Uranus in our solar system.
An artist’s impression of the oldest known system of terrestrial-sized planets, Kepler-444.
Tiago Campante/Peter Devine, University of Birmingham
One of the crucial variables in calculating the likelihood that alien life exists elsewhere in our galaxy is the number of stars that possess planetary systems, and the proportion of those planets that…