Wednesday, April 20, 2022

Orange dwarf stars may pose challenges for their ‘habitable’ planets | Science News

Orange dwarf stars may pose challenges for their 'habitable' planets | Science News

Some astronomers have called these orange suns "Goldilocks stars" ( SN: 11/18/09 ). They are dimmer and age more slowly than yellow sunlike stars, thus offering an orbiting planet a more stable climate. But they are brighter and age faster than red dwarfs, which often spew large flares.

Using data from the Hubble Space Telescope, astronomer Tyler Richey-Yowell and her colleagues examined 39 orange dwarfs. Most are moving together through the Milky Way in two separate groups, either 40 million or 650 million years old.

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Publisher: Science News
Date: 2022-04-20T15:00:00 00:00
Twitter: @sciencenews
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COLUMN: Ranking the planets of the solar system – The Daily Eastern News

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Publisher: The Daily Eastern News
Author: Adam Tumino
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The Hottest And Coldest Planets Of Our Solar System - WorldAtlas

The planets in our solar system are all unique in their way. In terms of temperature, no two planets have the same one since it is the result of various processes. Generally, a planet's temperature is determined by two primary factors: its distance from the Sun and its atmosphere's ...

As one might expect, the planets closest to the Sun are the warmest. The four inner planets, Mercury , Venus , Earth, and Mars , are warmer than the outer gas giants . However, the temperature of the planets does not follow a linear path from the Sun.

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Publisher: WorldAtlas
Date: 2022-04-19T11:09:28 00:00
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Four planets to appear in a line, a rare occurrence

A fifth planet, Mercury, will be visible in the sky but not at the same time, with Mercury visible in the evening but disappearing before the others become visible in the morning.

Jupiter, Venus, Mars and Saturn will align in a diagonal line in pre-dawn hours this week, joined by the moon. The quartet can be seen in the east-southeast sky before dawn, with planets distinguishable based on the fact they are brighter and twinkle less than stars.

Publisher: Huron Daily Tribune
Date: 2022-04-19 17:16:04
Author: Shepard Price Digital reporter
Twitter: @michigansthumb
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Dr. Brian Cox move beyond the Planets to the Universe | Vancouver Sun

His latest program, Universe, will air over successive nights as part of BBC Earth's Earth Week programming. The show follows the acclaimed Planets, taking viewers even further from our terrestrial realm into the cosmos.

"You really see it in Episode 1, which sets out to tell the stories of the stars differently," said Cox.

Publisher: vancouversun
Twitter: @VancouverSun
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4 planets and the moon join together in late April
Publisher: MSN
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