Carl Sagan detected life on Earth 30 years ago — here’s how his experiment is helping us search for alien species today

A strong case for life elsewhere will likely require a combination of mutually supporting evidence

Mars may have been less oxygen-rich than previously assumed

But there’s still a possibility of life on the Red Planet, finds study

Jupiter’s moon Europa produces less oxygen than we thought — it may affect our chances of finding life there

Although Europa boasts three basic ingredients for life –we don’t yet know if there has been enough time for life to develop

Venus might have microbial life in its atmosphere, study shows

Phosphine gas, made up of hydrogen and phosphorus, hass been found in the planet’s clouds, a marker for the existence of microbes that can …

Stormwater harvesting in parks and open spaces: Managing Delhi’s water woes

Water-sensitive urban design and planning approach, which mimics the natural water cycle, can help fix water systems in the city

Scientist who called mysterious Oumuamua object alien probe explains why

Abraham Loeb, one of the Harvard scientists who came up with this theory, talks about this extraordinary conclusion and the media frenzy it generated

NASA planning trip to Jupiter’s moon to search for alien life

A blast of water vapour from Jupiter’s moon Europa in 2012 indicated it may have life

The mystery behind radio signals from deep space

Many theories revolve around the origin and nature of fast radio bursts coming to us from far points in the universe. Down To Earth breaks down …

New AI tool may help discover extraterrestrial life, solve long-standing debates on Earth

It can tell difference between molecules that originate from life and those that come from non-living sources with 90% accuracy

Evolution: why it seems to have a direction and what to expect next

A dominant, intelligent species like humans will always be bad news for many of the other species on the planets where they evolve

Say hello to hachimoji: Scientists just doubled the genetic alphabet

Research results hold potential to look for different forms of life existing elsewhere in the universe

Blasting out Earth’s location with the hope of reaching aliens is a controversial idea – two teams of scientists are doing it anyway

Two international teams of astronomers are planning new attempts at alien communication; one is using a giant new radio telescope, and the …

Signs of life? Why astronomers are excited about carbon dioxide & methane in atmosphere of alien world

Chemical traces have been found in atmosphere of planet K2-18b, about 124 light-years from Earth