Articles on Stars

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Lasers being shone from the European Southern Observatory’s Very Large Telescope in Chile. These lasers help remove the twinkles in the night sky and help astronomers see stars clearer on Earth than ever before. F. Kamphues/ESO

Curious Kids: Why do stars twinkle?

How exactly do the stars twinkle in the night sky? As it turns out, the answer is full of hot air... and cold air.
In the beginning, the Universe expanded very, very fast. Flickr/Jamie

Curious Kids: what started the Big Bang?

What caused the Big Bang is still a mystery. And that's just one of the many unanswered questions, in spite of everything we do know about the birth of the Universe.
We can all reach for the stars in The Milky Way over Western Australia. Flickr/HuiChieh

We should encourage boys and girls to reach for the stars

The drive the get more women involved in science should start at an early age. But as one space researcher found out, girls can get nudged out of science at school.
An artists’s impression of how common planets are around the stars in the Milky Way. ESO/M. Kornmesser

Explainer: How to find an exoplanet (part 2)

A look at some of the more obscure methods astronomers use to detect planets around other stars, in the second of a two-part series on finding world's elsewhere in the universe.
In the Exoplanet Era, we are learning that planets abound in the cosmos. ESO/M. Kornmesser

Explainer: How to find an exoplanet (part 1)

Astronomers have discovered more than 3,000 planets around other stars, so far. In the first of a two-part series we look at how they find world's elsewhere in the universe.
An artist’s illustration of Kappa Ceti whose stellar winds are 50 times stronger than our sun’s. Any Earth-like planet would need a magnetic field to protect its atmosphere if it was to stand a chance of hosting life. M. Weiss/CfA

What the ‘weather’ is like on a star can help in the search for life

In the search for life on other planets in the universe we need to find the right kind of star, and it needs to have the right kind of space weather.

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