Brian Schmidt discusses the fast-firing universe

In 1998, a team led by a former Harvard graduate student shocked the astrophysics world by publishing results that said the expansion of the universe, believed to be gradually slowing, was instead accelerating.

Evolution makes invading species spread even faster

Today, invasive animals and plants spread all around the globe. Predicting the dynamics of these invasions is of great ecological and socioeconomical interest. Yet studying them is fundamentally challenging because of the ...

How fast is the universe expanding?

The Universe is expanding, but how quickly is it expanding? How far away is everything getting from everything else? And how do we know any of this anyway?

Why is Andromeda coming toward us?

I don't want to alarm you, but there's a massive galaxy heading our way and will collide with us in a few billion years. But aren't most galaxies speeding away? Why is Andromeda on a collision course with the Milky Way?

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