Astronomy updates
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For centuries man has observed the sky, centuries ago it was believed the skys were perfect and unmutable. Around 1500-1700 this believe changed by great scientist like Copernicus and Galilei. And now we have the tools and equipment to observe stars, nebulae and measure distant planets. >> Observatories on Earth (7) >> Observatories in Space (7) |
Since the 1950s we have tried to launch probes, satellites and rockets into space and to other parts inside and outside our solar system. From time to time this means accidents and failure, but gradually spaceflight develops further. >> Satellites and rockets (25) >> Space Shuttle >> Accidents in space travel >> Commercial spaceflight |
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There are much interesting objects and bodies in our solar system to observe. For instance, in 1930 Pluto was discovered as the ninth planet. Only in 1978 it was discovered Pluto has a moon. And in 2006 the International Astronomical Union ruled that Pluto no longer is considered to be a planet (because many other similar size rocks were discovered and aren't classified as planets either). >> The Sun, the planets and Pluto (10) >> Comets >> Meteors >> Asteroid belt >> Edgeworth-Kuiper Belt >> The Oort Cloud |
Other stars and orbiting exoplanets are interesting. What is the lifecycle of a star system? Are planets common in the Universe? Is life present on exoplanets? We have more questions than answers, and measurements to help answer the questions must be made over enormous distances. In time we will be able to observe more and progress in puzzeling on mysteries of today. >> Nearest starsystem Alpha Centauri >> Exoplanets, planets orbiting other stars (3) >> Formation of planets in Orion >> Formation of stars in Orion >> Albireo: Double stars |
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Stars are part of star clusters, nebulae and galaxies in the sky. The vastness of number of stars in one galaxy, and the number of galaxies in the universe is unbelievable. >> 110 bright deep sky objects - Charles Messier catalog (20) >> Milky Way Galaxy >> The Local Group of galaxies (8) >> Hubble Deep Field: very distant objects >> The Universe >> The Horsehead nebula >> What is a Nebula? |
The power of a star exploding at billions of miles or km from Earth is enormous. A "nearby" supernova can be easily observed in the daytime sky, as happend before in 1054 and in 1572. With the help of a telescope you can observe supernovae are common and each year many new novae, supernovae and even hypernovea are observed. >> Betelgeuse, a star going supernova >> Supernova SN1987A >> Supernova SNR N63A >> SNR 0103-72.6 Supernova remnant >> Cassiopeia A supernova >> V838 Monocerotis Light echo |
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Special topics like a theory about the birth of a black hole and the development of dinosaurs on Earth. >> Birth of a black hole >> Extinction of the dinosaurs |
Launches from Earth, planets close to each other and aurorae in the sky. >> Launches from Earth >> Planet Conjunctions >> Aurorae on Earth |
