Mars rover sensors may not be sensitive enough to find signs of life

While testing Mars rover sensors in the Atacama desert, researchers inadvertently found a variety of unclassifiable…

A weird comet is travelling through space with a dust blob it made

Comet 108P/Ciffreo was spotted in 1985 hurtling through space alongside a strange blob of dust, and…

The Longest Goodbye review: A poignant documentary on space psychology

Astronaut Cady Coleman playing duets with her Earth-bound son is among the moving and candid moments…

Dark energy may have been hiding in the cores of black holes all along

Observations of galaxy growth can be explained by proposing that the black holes at their centre…

Interstellar space: The mysterious realm beyond our heliosphere

Interstellar space may seem like unbroken nothingness, but thanks partly to the Voyager probes, we’re getting…

We're hurtling into a new region of interstellar space. What now?

As we speed towards a mysterious new bubble of interstellar space, new insights are revealing its…

Space rock or flashy alien technology? We're going to find out

Science is filled with imagined realities – beliefs that will turn out to be untrue –…

Weird dust ring orbits the sun alongside Mercury and we don't know why

Very little debris should be able to survive for long in the area near Mercury, but…

The First City on Mars review: How to make life on Mars a reality

Living on Mars will take enormous work, but urban planner Justin Hollander is already on the…

Dwarf planet Quaoar has a weirdly big ring of debris encircling it

Quaoar, a dwarf planet in our solar system, has a ring of debris orbiting it that…