milky way

NASA just realized the Milky Way has a ‘broken’ arm

NASA just realized the Milky Way has a ‘broken’ arm

NASA has observed and explored many parts of the universe around us, but when it comes to the Milky Way -- our galactic home -- things get tricky. Because of Earth's position within the Milky Way, it can be extra difficult to learn things about the galaxy. That makes a new discovery about one of the Milky Way's spiral arms particularly exciting.

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Researchers use extinct atom to date events in the early solar system

Researchers use extinct atom to date events in the early solar system

Researchers from ETH Zürich have announced they have been able to date events in the early solar system with greater precision than ever before possible using an extinct atom called niobium-92. The atom has a half-life of 37 million years, which is considered to be relatively brief leading to its extinction shortly after forming the solar system.

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“Fossil galaxy” found hiding deep inside the Milky Way

“Fossil galaxy” found hiding deep inside the Milky Way

Scientists sorting through data gathered from the Sloan Digital Sky Survey's Apache Point Observatory Galactic Evolution Experiment (APOGEE) have discovered what they call a "fossil galaxy" that's tucked away deep inside the Milky Way. Scientists say that the proposed fossil galaxy could have collided with the Milky Way 10 billion years ago when our galaxy was still in its infancy. The fossil galaxy has been named Heracles.

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