Worlds with a fluorescent glow may indicate signs of alien life.
After all, the Earth was once a snowball too.
We've learned so much about Mars, but pressing questions still remain.
Europa's almost as cold as your ex's heart, just as frozen.
The chances of it happening are pretty slim though.
There's a good chance life is thriving on alien moons.
This could be huge for our search of extraterrestrial life.
This would allow us to gain a new understanding of extraterrestrial life.
This is not about conspiracy theories, but a legitimate scientific concern.
The clock is ticking.
A team of researchers forced bacteria to create carbon-silicon bonds, and their experiment showcases why life on our planet chose carbon.
Life, as they say, finds a way.
If there are any, aliens should be less conspicuous and charismatic-looking than most people think.
When the very large can't be found, maybe it's time to look for the very small.
We don't want to say there's life on Mars... but there could be life on Mars.
The findings could have important consequences for the prospect of finding alien life there.
The mysterious high-energy signals are unaccounted for. Alien technology is not excluded.