Top new questions this week:
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I have been struggling to find the Extreme ultraviolet data from the Sun, taken in January 1999. I have already searched NOAA, NASA etc. every places, but not able to find anywhere.
One thing note ...
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(I'm asking this here rather than on the Engineering SE, since it's quite specific to astronomical technology; sorry if it's off-topic.)
Early Zeiss planetarium projectors had eyelid-like occulting ...
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Since we observe a number of very old, Methusalah-type Stars in the Milky Way and Andromeda and nearby galaxies, would we expect to be able to observe similar stars in far away galaxies, if only our ...
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New research reported by Royal Astronomical Society also backed by DESI shows no evidence of an accelerating universe.
"Remarkable" findings published today in Monthly Notices of the Royal
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Suppose a theoretical world with an axis tilt of 45°.
Suppose people in the Northern Hemisphere have also assigned 12 constellations, similar to Zodiac signs. By that, I mean that it doesn't matter ...
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Greatest hits from previous weeks:
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We know the spectacular explosions of supernovae, that when massive enough, form black holes. The explosive emission of both electromagnetic radiation and massive amounts of matter is clearly ...
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I have a 3inch Newtonian reflector telescope with 300 mm focal length. I can use highest magnification of 75x using a 4mm eyepiece. But in 75x I can't see the details of Jupiter what was expected. ...
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A Dyson sphere captures most or all of a star’s emitted energy. But if such a structure also traps and reflects radiation back toward the star, could it alter the energy balance at the star’s surface ...
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I wonder, why stars take a really long time to become stars? Is it because it needs to gain mass? Or heat up? Something like that? And could it be sped up at all?
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In Clarke's book 2010, the monolith and its brethren turned Jupiter into the small star nicknamed Lucifer. Ignoring the reality that we won't have any magical ...
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Is there a stable geostationary orbit around the Moon?
My feeling is, that the orbit would collide with Earth, because of the Moon's slow rotation.
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As we know, according to Wikipedia on Earth's inner core:
The Earth's inner core is the Earth's innermost part and according to seismological studies, it is primarily a solid ball with a radius of ...
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