cosmology and astronomy

Named after the trailblazing astronomer Named after the trailblazing astronomer Edwin P. Hubble (1889-1953), Edwin P. Hubble (1889-1953), the Hubble the Hubble Space Telescope (HST)Space Telescope (HST) is a large, space- is a large, space-based observatory which has based observatory which has revolutionized astronomy by providing revolutionized astronomy by providing unprecedented deep and clear views of unprecedented deep and clear views of the Universe, ranging from our own solar the Universe, ranging from our own solar system to extremely remote fledgling system to extremely remote fledgling galaxies forming not long after the Big galaxies forming not long after the Big Bang 13.7 billion years ago.Bang 13.7 billion years ago.

Hubble orbits Earth every 96 minutes, 575 Hubble orbits Earth every 96 minutes, 575 kilometers (360 miles) above the Earth's kilometers (360 miles) above the Earth's surface.surface. Hubble completes one orbit around the Hubble completes one orbit around the Earth (crossing over the same longitude Earth (crossing over the same longitude line) every 96 minutes. Its speed is line) every 96 minutes. Its speed is approximately 8 km per second (5 miles approximately 8 km per second (5 miles per second). per second).

HubbleHubble

The Hubble Space Telescope as seen from Space Shuttle Discovery during its second servicing mission (STS-822).

One of Hubble's most famous images, "pillars of creation" shows stars forming in the Eagle Nebula.

The alluring Cat’s Eye Nebula lies three thousand light-years from Earth. A classic planetary nebula , the Cat's Eye (NGC 6543) represents a final, brief yet glorious phase in the life of a sun-like star.

The Eskimo Nebula lies about 3000 light-years away and is visible with a small telescope in the constellation of Gemini.

MyCn18, a young planetary nebula located about 8,000 light years away.

Swan Nebula. This photo shows a bubbly ocean of glowing hydrogen, oxygen, and sulphur gas in the extremely massive and luminous molecular nebula Messier 17. Swan Nebula is located about 5500 light-years away in the Sagittarius constellation.

The Cone Nebula is located at the southern end of star cluster NGC 2264, in Monoceros. Radiation from hot stars off the top of the picture illuminates and erodes this giant, gaseous pillar. Additional ultraviolet radiation causes the gas to glow, giving the pillar its red halo of light.

This is the mess that is left when a star explodes. The Crab Nebula, the result of a supernova seen in 1054 AD, is filled with mysterious filaments.

Planetary Nebula Mz3, The Ant Nebula. Expelled gas streaming away at 1,000 kilometres per second create a strange ant shape.

Star V838 Monocerotis (V838 Mon), The star Monocerotis is seen here on the fringe of the Milky Way, brightly illuminated by reflected light from a past explosion.

These glowering eyes are the swirling cores of two merging galaxies called NGC 2207 and IC 2163 in Canis Major. Billions of years from now, only one of these two galaxies will remain. Until then, they will slowly pull each other apart.

This photo showsThis photo shows a fragment of the Trifid Nebula, a stellar cradle a fragment of the Trifid Nebula, a stellar cradle to 9000 light-years.to 9000 light-years.

The Sombrero Galaxy (M104), A brilliant white core is encircled by thick dust lanes in this spiral galaxy, seen edge-on. The galaxy is 50,000 light-years across and 28 million light years from Earth.

A Hubble Space Telescope (HST) image of NGC 604 in the Triangulum Galaxy.

The Eagle Nebula tagged M16, lies about 6500 light years away, spans about 20 light-years, and is visible with binoculars toward the constellation of Serpens.

M57: Ring Nebula is probably the most famous celestial band.

RCW 79 Nebula

The Rosette Nebula ( NGC 2237) is not the only cosmic cloud of gas and dust to evoke the imagery of flowers. But it is the one most often suggested as a suitable astronomy image for Valentine's Day.

The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated south of Orion's Belt. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of 1,344±20 light years.

A Black hole is a region of space in which the gravitational field is so powerful that nothing, including light, can escape its pull. The black hole has a one-way surface, called an event horizon, into which objects can fall, but out of which nothing can come.

A protostar is a large object that forms by contraction out of the gas of a giant molecular cloud in the interstellar medium. The protostellar phase is an early stage in the process of star formation.

Milky way ,the Sun is indicated in red.

Milky way- a milky patch of stars that rings the Earth.

The Majestic Spiral Galaxy NGC 4414

Halley's Comet or Comet Halley (officially designated 1P/Halley) is the most famous of the periodic comets and can currently be seen every 75–76 years.

Voyager 1 is currently the farthest human-made object from Earth, traveling away from both the Earth and the Sun at a speed that corresponds to a greater specific energy than any other probe.

The Sun with the atsmophere

Atsmophere without the Sun

Mercury is the closest planet to the Sun and the eighth largest.

Venus cloudless, is the second planet from the Sun and the sixth largest.

Venus with clouds

The Earth is the third planet from the Sun and the fifth largest.

Earth without clouds

The Earth with the Moon rising

The Earth with the new Moon

The Earth with the full Moon

Mars is the fourth planet from the Sun and the seventh largest.

Phobos and Deimos in orbit around Mars

Size comparison of terrestrial planets (left to right): Mercury, Venus, Earth, and Mars.

Jupiter is the fifth planet from the Sun and by far the largest.

The 8 closest satellites orbiting Jupiter

Saturn is the sixth planet from the Sun and the second largest.

Satellites in orbit around Saturn

Uranus is the seventh planet from the Sun and the third largest (by diameter).

Satellites orbiting Uranus

Neptune is the eighth planet from the Sun and the fourth largest (by diameter).

Satellites in orbit around Neptune (except Nereides)

Nereid and Triton orbits Neptune

The Moon

Fotoprint on the surface of the Moon, taken in July of 1969 during the Apollo 11 mission.

Pluto, orbits beyond the orbit of Neptune (usually). It is much smaller than any of the official planets and now classified as a "dwarf planet".

Charon orbiting Pluto

A 2003 UB 313 (Eris) is the largest known dwarf planet in the Solar System and the ninth-largest body known to orbit the Sun directly.

Ceres, is the smallest identified dwarf planet in the Solar System and the only one in the astoroid belt.

Makemake, is the third-largest known dwarf planet in the Solar System and one of the two largest Kuiper belt objects.

Haumea, the fifth designated dwarf planet has two small moons discovered in 2005, recently renamed Hi'iaka and Namaka for daughters of the goddess.

New technology and satellite experiments, such as the Hubble Space Telescope, have brought us an ever improving picture of our Universe.

We have long known that there is more to our universe than we can see…

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