There has been much excitement this week about the possibility of water -- and life -- on some newly discovered exoplanets. But we can look closer to home for evidence of ET.
Several of the newly-discovered exoplanets orbiting a small star appear to be locked in an intricate dance that hints at how such planetary systems can form.
Churchill allowed science to flourish. Without a similar attitude in today’s politics, we may hit a bottleneck for life that leaves a Universe without a single human soul to enjoy it.
Ruby and sapphire clouds may be hovering over exoplanet HAT-P-7b.
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 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.
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.
Earth is the only planet in our solar system with both plate tectonics and life. Is there a connection?
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.
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.
Why Planet Nine should be found in the next few years ... if it exists.
Many of the new planets found in other star systems have some extraordinary orbital behavior. So what's going on?
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?
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.
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?
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?
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.
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.
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.
Why the new exoplanet said to resemble out Earth might just as well resemble Venus or Neptune.