What is a black hole?
A black hole is a region in space where the gravitational pull is so strong that not even light can escape from it. They are formed when massive stars collapse under their own gravity.
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What is dark matter?
Dark matter is an unknown form of matter that does not emit, absorb, or reflect light. Its presence is inferred from its gravitational effects on visible matter, such as galaxies and galaxy clusters. It is thought to make up about 27% of the universe.
What is a supernova?
A supernova is a powerful explosion that occurs when a star reaches the end of its life cycle. This explosion releases an enormous amount of energy and can outshine an entire galaxy for a short period.
What is a comet?
A comet is an icy body that, when passing close to the Sun, heats up and releases gases, creating a glowing coma and sometimes a tail that always points away from the Sun due to the solar wind.
What is the Hubble Space Telescope?
The Hubble Space Telescope is a large space-based observatory that was launched into low Earth orbit in 1990. It has provided some of the most detailed images of distant galaxies, nebulae, and other astronomical phenomena.
