Meet HELIX, the High-Altitude Balloon That May Solve a Deep Cosmic Mystery Every now and then, tiny particles of antimatter strike Earth from cosmic parts unknown.

The Helix Nebula, located 650 light-years from Earth, has baffled scientists for decades. The planetary nebula was created by a dying star that shed its outer layers of gas, leaving behind a small ...

Scientists have been receiving X-ray signals from the Helix Nebula for decades, but now they believe it may hide a horrifying and grisly secret.

About Nebula Nebula represents an exciting class of smart, portable entertainment products. This includes Nebula's popular line of high-definition projectors.

About Nebula Nebula represents an exciting class of smart, portable entertainment products. This includes Nebula's popular line of high-definition projectors.

An unusual x-ray signal from the Helix Nebula, first detected in 19180, could stem from a star destroying a nearby planet. Credit: NASA/CXC/A. Hobart US strikes on Iran ‘less devastating than ...

Nebula represents an exciting class of smart, portable entertainment products. This includes Nebula's popular line of high-definition projectors.

Nebula represents an exciting class of smart, portable entertainment products. This includes Nebula's popular line of high-definition projectors.