Jesse Argenziano

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Why The Black Hole Information Paradox Is Such A Problem

You might think it takes a lot of energy to escape Earth’s gravity, but our planet’s pull is tiny compared to many other things in the Universe. Same for our Sun, the galaxy, or even an extreme object like a neutron star. Instead, imagine a small, compact region of space that’s filled with so much …

Physics

Has Stephen Hawking Just Solved a Huge Black-Hole Mystery?

Stephen Hawking may have just solved one of the most vexing mysteries in physics — the "information paradox."<p>Einstein's theory of general relativity …

How to Spot a Black Hole

You don’t need to be a professional astronomer to find black holes. Here’s how you can spot one, using just your laptop or phone.<p>Radio Galaxy Zoo is …

Is there a Planet X, a ‘massive perturber,’ hidden beyond Pluto?

By Joel Achenbach<p>, Reporter<p>If you’ve been following our coverage of the New Horizons mission, you know that the NASA probe had a spectacular fly-by of Pluto on July 14 and, if the agency approves the funding, will scrutinize a “cold, classical" Kuiper Belt Object on New Year’s Day, 2019. It’s …

Solar System

35 weird objects seen on Mars, explained

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Saturn-studying spacecraft snaps awesome image of planet's moon Dione

NASA's Cassini spacecraft, which is nearing the end of its time exploring Saturn and its 62 moons, took yet another incredible photo of the ringed …