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A stellar odd couple at an unusual stage of evolution
来源: Phys.org - latest science and technology news stories · 发布于
Most of the stars in the Milky Way are what we might call normal stars. They're main sequence stars like our sun, meaning they're doing what most people probably think stars do: shining as they fuse hydrogen atoms into helium atoms on a vast scale.
Most of the stars in the Milky Way are what we might call normal stars. They're main sequence stars like our sun, meaning they're doing what most people probably think stars do: shining as they fuse hydrogen atoms into helium atoms on a vast scale.
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Rubin Observatory discovers two hidden companions of the Milky Way. Hundreds more may be waiting
The Vera C. Rubin Observatory has already uncovered two previously unknown companions of the Milky Way using preliminary observations covering just 7% of the night sky. The discoveries include an extremely faint galaxy 355,000 light-years away and a star cluster hidden behind cos
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Dead stars could break one of physics' most famous limits
A surprising new discovery suggests that some dead stars can grow far more massive than scientists once thought possible. Computer simulations show that powerful magnetic fields could allow white dwarfs to reach 2.4 times the mass of the Sun, dramatically exceeding a famous limit
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The ELT can probe ultra-diffuse galaxies and their dark matter mysteries
We've been waiting a long time for the Extremely Large Telescope's first light, scheduled for March 2029. Telescopes this large, powerful and costly always have multiple science goals, and that's true for the ELT. One of its science goals is to study fundamental aspects of the un
Phys.org - latest science and technology news stories ·
Did early humans collect keepsakes 500,000 years ago?
Most of us are familiar with the urge to pick up a seashell from the beach or keep a stone from a hiking trip. The object itself may be ordinary, but to the person who keeps it, it serves as a reminder of a particular moment, place or person. Where did this behavior come from? Di
Phys.org - latest science and technology news stories ·
Some regions may already be living in a 1.5°C warmer world
Regions worldwide may have already experienced around 90%–94% of the warming expected when the global average reaches 1.5°C above preindustrial levels, and 65%–76% of that expected at 2°C of warming. The findings, published in Nature Climate Change, suggest that regional warming
Phys.org - latest science and technology news stories ·