APOD: 2025 February 3 Б Wolf Rayet Star 124: Stellar Wind Machine

Пн, Февраль 03, 2025 - 7:30 / Категория: astronet

Some stars explode in slow motion.

Rare, massive
Wolf-Rayet stars
are so tumultuous and hot that they are slowly disintegrating right before our telescopes.

Glowing gas globs each typically over 30 times more massive than
the Earth
are being expelled by violent stellar winds.

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APOD: 2025 May 4 Б Spin up of a Supermassive Black Hole

Вс, Май 04, 2025 - 8:30

How fast can a black hole spin? If any object made of regular matter spins too fast -- it breaks apart. But a black hole might not be able to break apart -- and its maximum spin rate is really unknown.

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Titan: Moon over Saturn

Сб, Май 03, 2025 - 8:30

Like Earth's moon, Saturn's largest moon Titan is locked in synchronous rotation with its planet. This mosaic of images recorded by the Cassini spacecraft in May of 2012 shows its anti-Saturn side, the side always facing away from the