Science & Environment

Subaru Telescope reveals the shape and temperature of Comet Encke's nucleus

Source: Phys.org - latest science and technology news stories · Published

Subaru Telescope reveals the shape and temperature of Comet Encke's nucleus
Source: Phys.org - latest science and technology news stories

Mid-infrared observations with the Subaru Telescope have revealed the shape and surface temperature of the nucleus of Comet 2P/Encke. By analyzing how the nucleus's thermal emission changed as it rotated, the researchers found that the nucleus is elongated, with a long axis of ab

Mid-infrared observations with the Subaru Telescope have revealed the shape and surface temperature of the nucleus of Comet 2P/Encke. By analyzing how the nucleus's thermal emission changed as it rotated, the researchers found that the nucleus is elongated, with a long axis of about 7 kilometers and a short axis of about 3 kilometers. They also determined that the surface temperature at the time of observation was 328 ± 7 Kelvin (about 55°C).

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Some regions may already be living in a 1.5°C warmer world
Science & Environment

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

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Male lizard 'perfumes' may be more about rivalry than seduction
Science & Environment

Male lizard 'perfumes' may be more about rivalry than seduction

Animals communicate in ways that are sometimes obvious to us and sometimes almost completely hidden. Bright colors, songs and courtship displays are easy to notice. Chemical signals are different: an animal can leave a message behind long after it has moved away.

Phys.org - latest science and technology news stories ·

A stellar odd couple at an unusual stage of evolution
Science & Environment

A stellar odd couple at an unusual stage of evolution

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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