Why do pictures of Earth taken from the Moon show a black sky with no stars?
◉ The simple answer to the question is the camera settings used to take most photos from the Moon weren’t designed to capture stars.
• Apollo astronauts used film cameras — Film is a light-sensitive emulsion over plastic. When that plastic is exposed to light through the camera’s lens, a chemical change produces a negative image of whatever is photographed.
• A photographer has to consider the lens aperture and shutter speed. — A smaller aperture means less light, as does a faster shutter speed.
— A photographer also has to consider the most important part of the photograph before setting aperture and shutter speed. Generally speaking, the brighter the target object, the smaller the aperture and the faster the shutter; otherwise, too much light will hit the film, and the photo will be dominated by a washed-out, overexposed focal point.
◉ The simple answer to the question is the camera settings used to take most photos from the Moon weren’t designed to capture stars.
• Apollo astronauts used film cameras — Film is a light-sensitive emulsion over plastic. When that plastic is exposed to light through the camera’s lens, a chemical change produces a negative image of whatever is photographed.
• A photographer has to consider the lens aperture and shutter speed. — A smaller aperture means less light, as does a faster shutter speed.
— A photographer also has to consider the most important part of the photograph before setting aperture and shutter speed. Generally speaking, the brighter the target object, the smaller the aperture and the faster the shutter; otherwise, too much light will hit the film, and the photo will be dominated by a washed-out, overexposed focal point.
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Webb discovers the earliest known galaxy — for now.
◉ The James Webb Space Telescope has discovered JADES-GS-z14-0, formed just 290 million years after the Big Bang.
• JADES-GS-z14-0 is now the most distant and therefore, the youngest galaxy ever observed. Formed just 290 million years after the Big Bang (at two percent of the age of the cosmos), the galaxy spans some 1,600 light-years and is pouring out light. The JWST Advanced Deep Extragalactic Survey (JADES) team announced the finding last week.
◉ The James Webb Space Telescope has discovered JADES-GS-z14-0, formed just 290 million years after the Big Bang.
• JADES-GS-z14-0 is now the most distant and therefore, the youngest galaxy ever observed. Formed just 290 million years after the Big Bang (at two percent of the age of the cosmos), the galaxy spans some 1,600 light-years and is pouring out light. The JWST Advanced Deep Extragalactic Survey (JADES) team announced the finding last week.
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On the other side of the sun, an impressive plasma loop reaches out from the sun. This view, showing light with a wavelength of 30.4 nanometers, shows solar material at about 90,000 degrees Fahrenheit.
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Telegram native coin DOGS has just confirmed the listing date is AUGUST 14TH.
If you are not joined DOGS yet you still have 3 days to mine some coins.
📅 Join Dogs😎
🥷🤑 ONLY 3 DAYS LEFT!!!
Join Dogs bot you will get coins based on the age of your telegram account
https://t.iss.one/dogshouse_bot/join?startapp=bbB1CaEiRqy6brOdVf1G9Q
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