Chaotic times: When stars loom into the Earth

Astrophysicists are using new methods to simulate the common-envelope phase of binary stars, discovering dynamic irregularities that may help to explain how supernovae evolve.

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Gigantic cloud bounces back to our galaxy

New Hubble telescope observations suggest that a high-velocity gas cloud was launched from the outer regions of our own galaxy around 70 million years ago. Now, the cloud is on a return collision course and is expected to plow into the Milky Way's disk in about 30 million years. Astronomers believe it will ignite a spectacular burst of star formation then.

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Sasikumar
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What is the Universe made of?

The mysterious composition of the enormous Universe still remains an unanswered puzzle. Matter known as ordinary, which makes up everything we know, corresponds to only 5% of the Universe. Approximately half of this percentage still eluded detection. Numerical simulations made it possible to predict that the rest of this ordinary matter should be located in the large-scale structures that form the "cosmic web" at temperatures between 100,000 and 10 million..

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