'Cool flames' ignited in space

A discovery has been made in Earth's orbit—steady spherical cool diffusion flames. Measurements in these flames could help improve the engines of the future.

Why does Mercury have such a big iron core? Magnetism!

A new study disputes the prevailing hypothesis on why Mercury has a big core relative to its mantle (the layer between a planet's core and crust). For decades, scientists argued that hit-and-run collisions with other bodies ...

First clear view of a boiling cauldron where stars are born

University of Maryland researchers created the first high-resolution image of an expanding bubble of hot plasma and ionized gas where stars are born. Previous low-resolution images did not clearly show the bubble or reveal ...

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