A white hole is a theoretical object hypothesized to be the reverse of a black hole. Unlike a black hole, which sucks matter in, a white hole is said to spit matter out. A white hole cannot be entered from... (More)
Sai Charan 1,229 President, International Amateur Astronomical Association
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Chromatic aberration in astrophotography can be mitigated using the chromatic aberration tool in most image-processing software. For example, you can use the chromatic aberration removal tool in PaintShop Pro. I don't think you will need specialised software designed for astrophotography... (More)
The simple answer is that astronauts continue to wear clothes until it is no longer functional. They still change clothes on a daily basis, but their wardrobe is limited. As a result, NASA astronauts on the International Space Station cycle... (More)
The basic laws of physics and chemistry are universal. However, the planetary geology of each planet can vary wildly. For example, there is very little similarity between Kepler-452b, a rocky exoplanet and HAT-P-1b, a gaseous exoplanet. So, no, the geology... (More)
Astronomy is the study of everything in the universe. Astronomy includes determining the nature of things on a small scale, such as the composition and evolution of individual stars, planets and interstellar gas, building to include the makeup of galaxies... (More)
The best laptop for astronomy and astrophotography largely depends on the software that you plan to use and their system requirements. The most commonly used software in astronomy are Starry Night Pro, Maxim DL, and Stellarium; these run on just... (More)
I've heard that Ladakh is an excellent place for stargazing. If you're looking for a location near you, you can look up a map of the Bortle Scale. Any place with a Bortle Scale of less than 3 should be... (More)
It's of course always a matter of money. Also, modern ground-based telescopes with state-of-the-art adaptive optics can observe the Universe basically as good as Hubble can from space - at a lower cost. New space telescopes will focus on the... (More)
Yes, there are many observatories in India and around the world that allow the general public and amateurs to use their observatory facilities for observation purposes. The GP Birla Observatory in Hyderabad is one such observatory. I'd recommend you to... (More)
The far side of the Moon is the lunar hemisphere that always faces away from the Earth, opposite to the near side.
One key difference between the Moon's far side and its near side is the difference in topography. Compared... (More)
Well, hopefully, none in the next many years. There are systems monitoring asteroid sizes and impact probabilities like this one: https://cneos.jpl.nasa.gov/sentry/91. To wipe out life, an asteroid would have to be about 60 miles (100km) wide and to destroy the... (More)
The field of Space Biology is often formally called Astrobiology. Astrobiology is the study of life in outer space. The field of astrobiology looks for conditions necessary for life, like liquid water, a good temperature, or the presence of oxygen.... (More)