This special “smiling rainbow” only appears in the sky when the sun is around 22 degrees above the horizon. The sun may be ...

A team of astronomers has uncovered an unexpectedly complex and dynamic filamentary network within a very-high-velocity cloud ...

An international team of astronomers has discovered a massive cloud of gas and dust located in a little-known region of our ...

So what’s the process behind the contrails forming behind high-flying planes as they race through the sky? The exhaust from ...

Twin orbs of superhot plasma at the Milky Way's center known as the "Fermi bubbles" contain inexplicable clouds of cold ...

A surprising discovery at the heart of the Milky Way is forcing scientists to rethink how massive structures called Fermi ...