There's nothing in the universe that isn't moving -- even us. Trace tries to slow things down long enough to calculate just how fast we little humans, even when seated, are flying through space.
Trace breaks down some of his favorite theories for what the universe is. Are we really just living in a computer simulation?
The "lithium problem" has been a quandary for astronomers for decades, but now, with the help of one of the world's most powerful observatories, we've discovered that the puzzle isn't exclusive to stars inside the Milky Way. Continue reading →
Chemical signature of ancient star suggests it incorporated material blasted into space by a supernova explosion from huge star in early universe.
The idea that there are an infinite number of universes beyond our own is assumed impossible to prove or disprove -- but a new computer model might give us hints as to what evidence to look for. Continue reading →
A strange geometric shape observed on a faraway world. Haven't we seen this movie before? Thankfully, it turns out the shape is likely a product of nature and not the ghost of Stanley Kubrick. Ian O'Neill explains.
The boundaries of our home galaxy may have to be redrawn.
A hotspot of powerful, ultrahigh-energy particles streams toward Earth from beneath the handle of the Big Dipper constellation. This collection of cosmic rays may help scientists nail down the origin point of the powerful particles, a century-old mystery.
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