Aliens might exist. But there are three reasons why they’re not visiting us

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home planet.

Related

Other articles with overlapping topics.

T

The Conversation

Drone use poised to soar as FAA homes in on rule change allowing pilots to fly them out of sight

Allowing people to fly drones beyond their line of sight could greatly expand commercial applications.

Agamemnon Crassidis, Professor of Mechanical Engineering, Rochester Institute of Technology·Jun 11, 2026

T

The Conversation

Astronomers found a galaxy in the throes of death – and they know what’s killing it

All things die, even galaxies.

Deanne Fisher, Associate Professor of Astronomy, Swinburne University of Technology·Jun 9, 2026

Nautilus

Mysterious Web-Footed “Ghost Dog” Caught on Camera

The elusive canids deliberately avoid humans The post Mysterious Web-Footed “Ghost Dog” Caught on Camera appeared first on Nautilus.

Jake Currie·Jun 9, 2026

Nautilus

Why Robots Still Can’t Do Science

AI can read the literature in an afternoon and design molecules a chemist never would. So why can't a robot hold a pipette? The post Why Robots Still Can’t Do Science appeared first on Nautilus.

Grigori Guitchounts·Jun 12, 2026

National Geographic

Fungi take up more mass than people—see how they stretch across the Earth

Scientists created the first-ever map of this vast underground fungal network and found it could stretch to the sun and back more than a billion times.

8 min read

Quanta Magazine

Where Did Earth Get Its Oceans? Maybe It Made Them Itself.

At first, scientists thought Earth’s water came from comets. Then, asteroids. Now, they wonder if Earth’s water is homegrown. The post Where Did Earth Get Its Oceans? Maybe It Made Them Itself. first appeared on Quanta Magazine

Robin George Andrews·Jun 12, 2026