The discovery of the year was the first detection of gravitational waves.
Colliding black holes to exploding spacecraft, 2016 was an incredible year for astrophysics.
Mysterious radiation that appears to come from star HD 164595 is more likely to have a terrestrial origin.
Some argue that it would be impossible to understand an alien language, as it wouldn't have the same grammar as humans use. But others are more optimistic.
Artist’s rendition of one of the billions of rocky exoplanets in our galaxy.
Did life once exist on its surface?
Complex life may be rare in the universe because most planets become either too hot or too cold before life has a chance to get a foothold. This might explain why we have yet to bump into E.T.
ESO/José Francisco Salgado (josefrancisco.org)
In a world of blogs, twitter and open data, scientists need to think again about how they'd communicate a discovery of alien life.
A highlight of 2015 was the number of weird and wonderful exoplanets that were found.
From a flyby of Pluto to the search for extrasolar planets and gravitational waves, 2015 was a monumental year for space news.
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.
Scientists can’t explain strange flickering from distant star.
The chance that Kepler has spotted construction of a Dyson sphere are very low but it could also be the ruins of such a structure.
Is this what we’re seeing around KIC 8462852 - a colossal megastructure built by alien intelligence? Probably not. The reality might be even more interesting.
There's a lot of speculation about a star behaving strangely in our galaxy. But even if it's not evidence of alien intelligence, it's sure to be an amazing discovery.
The discovery of Kepler-452b raises questions that go to the heart of religion.
NASA/AAP/ Artist's impression of Kepler-452b.
Kepler-452b's discovery last week has raised the perennial question: are we alone in the universe? While the find's scientific import is huge, it also poses questions that go to the heart of religion.
What kind of creatures might we find populating the cosmos?
Given Earth is our sole example of life in the universe, it's hard to know what we're looking for elsewhere in the cosmos.
Stop calling all the time. Ever heard of the three-day rule?
Simple mathematics suggests that if there are aliens out there, they should have reached us by now. So is it really worthwhile trying to communicate with them?
What secrets will space reveal?
Why the Breakthrough Listen project is a step in the right direction in our hunt for life beyond Earth.
The 64-metre Parkes Radio telescope will be instrumental in the search for extraterrestrial intelligence.
The Parkes radio telescope is part of the US$100 million search for life elsewhere in the universe, but the investment will also benefit other space research at The Dish.
We come in peace.
The Conversation organised a public question-and-answer session on Reddit in which Seth Shostak, senior astronomer at the SETI Institute, explained why searching for intelligent life is so important and…
The same question again and again.
While alien life can be seen nightly on television and in the movies, it has never been seen in space. Not so much as a microbe, dead or alive, let alone a wrinkle-faced Klingon. Despite this lack of protoplasmic…
Programmers will find ways to harness the massively distributed global internet.
Night Owl City
Today I’m annoyed at Facebook. Among the amazingly witty and touching postings from my friends and Amnesty International are “pages you might like” and advertisements for things I don’t need, especially…