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EarthSky Voices

5 discoveries we owe to twins

Years of twin research have led to incredible insights into how our genes and the environment affect our health.

What is dark matter?

Cosmologists are heading back to their chalkboards, as experiments designed to figure out the nature of dark matter come up empty.

How the universe creates gold

Finally, scientists know how the universe makes gold. They've seen it created in the cosmic fire of 2 colliding stars via the gravitational wave they emitted.

Gravitational waves: What are they?

If you understand how a trampoline works, you'll be able to understand what gravitational waves are.

How gravitational waves attracted a Nobel Prize

The 2017 Nobel prize for physics was awarded to scientists who helped pioneer the discovery of ripples in the fabric of spacetime, known as gravitational waves. 

Nobel winners shed light on circadian rhythms

Three American scientists share the 2017 Nobel Prize in Physiology or Medicine for work that explained how our cells keep track of time.

Why don’t poison frogs poison themselves?

Scientists are a step closer to resolving this head-scratcher. And their findings have potential consequences for the fight against pain and addiction.

How well can seeds survive in space?

If humans want to live on Mars, we're going to need to grow food. How well can seeds survive harsh, non-Earth conditions?

Humans are still evolving, say scientists

Scientists have identified genetic variants less common in older people than younger people. They say it's natural selection at work, continuing to weed out disadvantageous traits.

Irma turns Caribbean islands brown

Wow. Check out these satellite images of Caribbean islands before and after Hurricane Irma