The Universe

Latest coverage

Is Pluto a planet? Why it isn't, and where Pluto is now

Marvin Smit · 8 min read

Halley's Comet: when it returns in 2061, and where it is now

Marvin Smit · 10 min read

The Wow! signal: what 6EQUJ5 means, and is the mystery solved?

Marvin Smit · 13 min read

How old is the Earth? 4.54 billion years, and how scientists know

Marvin Smit · 10 min read

Is there life on other planets? What scientists know in 2026

Marvin Smit · 13 min read

How many moons does Mars have? Phobos, Deimos and the moon that rises in the west

Marvin Smit · 10 min read

How many moons does Saturn have? The 2026 count, Titan and the rings

Marvin Smit · 10 min read

How many moons does Jupiter have? The 2026 count, the four big ones and how to see them

Marvin Smit · 9 min read

How far is the Sun from Earth? Distance, closest point and sunlight time

Marvin Smit · 8 min read

How far is the Moon from Earth? Distance, closest points and travel time

Marvin Smit · 9 min read

How far is Mars from Earth? The distance now and at the 2027 close approach

Marvin Smit · 14 min read

How old is the universe? What the measurements say

Marvin Smit · 10 min read