Using the Borexino particle detector—located deep underground in Italy—researchers spot elusive neutrinos from the Sun’s CNO cycle.
Celestial mechanics
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The Closest Black Hole Is 1,000 Light-Years Away
An unseen object—probably a black hole—orbits with two normal stars in our cosmic neighborhood.
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Planetary Low Tide May Force Regular Sunspot Sync Ups
A regular alignment of the planets—no, it’s not pseudoscience—makes a strong enough tug to regulate the Sun’s 11- and 22-year cycles.
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First Spacecraft to Touch the Sun Awaiting Launch
The Parker Solar Probe will study the Sun’s corona and its electric and magnetic fields, as well as the mechanisms that drive the solar wind, all from behind an advanced protective heat shield.