The question of whether normal matter’s shadowy counterpart anti-matter exerts a kind of “anti-gravity” is set to be answered, according to a new report.

Researchers have “cloaked” a three-dimensional object, making it invisible from all angles, for the first time.

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Most of the high-profile invisibility cloaking efforts have focused on the engineering of “metamaterials” - modifying materials to have properties that cannot be found in nature.

The modifications allow metamaterials to guide and channel light in unusual ways - specifically, to make the light rays arrive as if they had not passed over or been reflected by a cloaked object.

For the first time, a NASA spacecraft has directly observed “alien” particles that came from beyond our solar system, astronomers announced today.

The discovery not only gives us a glimpse of what exists in the so-called interstellar medium—the matter between stars—but also offers clues to the anatomy of our local galactic neighborhood.

Orbiting Earth some 200,000 miles (322,000 kilometers) away, the Interstellar Boundary Explorer (IBEX) spacecraft was able to snag samples of hydrogen, oxygen, and neon that came from interstellar space.

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