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notebookcheck.net > Astronomers-discover-two-stars-that-became-a-binary-system-just-60-years-ago.1395719.0.html

Astronomers discover two stars that became a binary system just 60 years ago

2+ day, 20+ hour ago   (220+ words) While our Sun is alone, about half of the stars with a similar mass have a companion. And recently, astronomers have discovered evidence of a binary system that may have formed about 60 years ago. The system in question is IRAS…...

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notebookcheck.net > After-years-of-silence-a-pulsar-suddenly-changes-its-spin-three-times.1391591.0.html

After years of silence, a pulsar suddenly changes its spin three times

5+ day, 20+ hour ago   (219+ words) Although they remain largely mysterious, pulsars are neutron stars that rotate at different speeds. However, their rotation can sometimes suddenly accelerate, a phenomenon known as a glitch. According to astronomers, younger pulsars are more likely to exhibit this behavior, as…...

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notebookcheck.net > Simulations-provide-new-clues-about-how-the-Moon-formed.1385709.0.html

Simulations provide new clues about how the Moon formed

1+ week, 3+ day ago   (190+ words) Although we see it every day, scientists still have difficulty understanding the events that led to the Moon's formation. But new simulations suggest that it may have formed quickly, in just a few hours. As a reminder, the Moon is…...

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notebookcheck.net > Brightin-Star-35-mm-f-1-7-APO-full-frame-lens-launches-92-cheaper-than-Leica-APO-Summicron.1374380.0.html

Brightin Star 35 mm f/1.7 APO full-frame lens launches 92% cheaper than Leica APO-Summicron

3+ week, 2+ day ago   (268+ words) Notebookcheck The Brightin Star MF 35 mm f/1.7 APO is positioned as a faster, significantly more affordable alternative to the Leica APO-Summicron-M 35 mm f/2. With a price of $759, the Brightin Star lens is 92 percent or $8,741 cheaper than the Leica APO-Summicron, yet…...