by Markus Schwarz » Fri Jul 19, 2019 7:40 am
RocketRon wrote: ↑Fri Jul 19, 2019 5:14 am
Something I've wondered since those grainy pics on TV, why is the sky so black ?
They'd have the best view of the universe in the universe ??
Because the picture was taken during day time (the sun is up) and stars are very faint. If the moon had an atmosphere, the sky would be blue, but without an atmosphere, it is just black. Taking a picture of the stars would have let to overexposure of the lunar surface. For similar reason, we can't see as many stars during a full moon, which is also very bright compared to the stars.
This APOD is a picture taken from the ISS during night time, and you can see the stars.
[quote=RocketRon post_id=293833 time=1563513240]
Something I've wondered since those grainy pics on TV, why is the sky so black ?
They'd have the best view of the universe in the universe ??
[/quote]
Because the picture was taken during day time (the sun is up) and stars are very faint. If the moon had an atmosphere, the sky would be blue, but without an atmosphere, it is just black. Taking a picture of the stars would have let to overexposure of the lunar surface. For similar reason, we can't see as many stars during a full moon, which is also very bright compared to the stars.
[url=https://apod.nasa.gov/apod/ap180529.html]This APOD[/url] is a picture taken from the ISS during night time, and you can see the stars.