June 16, 2024
1 Solar System Way, Planet Earth, USA
Astronomy

How can the visible universe have a radius of 46 billion light years when the universe is only 13.8 billion years old?

Return to article list The expansion of the universe explains how it can be much larger than 13.8 billion light years. How can the visible universe have a radius of 46 billion light years when the universe is only 13.8 billion years old? And how can we detect light from 46 billion light years away

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Astronomy

How can the visible universe have a radius of 46 billion light years when the universe is only 13.8 billion years old?

Return to article list The expansion of the universe explains how it can be much larger than 13.8 billion light years. How can the visible universe have a radius of 46 billion light years when the universe is only 13.8 billion years old? And how can we detect light from 46 billion light years away

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Astronomy

Explore the sky with the Celestron autoguider

Celestron's next-generation StarSense Autoguider (SSAG) can be mounted on many brands of telescopes. A compatibility list is available on the Celestron website. Credit: Celestron Maybe you've always wanted to try astroimaging, but were intimidated by the technical aspects, the equipment requirements, the level of experience needed… you know, the work. The hardware requirements alone can

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Astronomy

Mystery of the pyramidal mountain of the unnamed Moon solved

Return to article list This unnamed lunar feature has had many names, including Mons Undset after the 1928 Nobel Prize winner Sigrid Undset. An Apollo 15 image of Lambert Crater with Mons Undset to the west (right, where we added a circle) casting a pyramidal shadow. Mons Undset is named after the novelist Sigrid Undset.

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