Kamis, 31 Maret 2016

Colliding galaxies: NGC 520

Colliding galaxies: NGC 520

NGC 520 is the product of a collision between two disc galaxies that started 300 million years ago. It exemplifies the middle stages of the merging process: the discs of the parent galaxies have merged together, but the nuclei have not yet coalesced. It features an odd-looking tail of...

Rabu, 30 Maret 2016

A spiral galaxy crowned by a star

A spiral galaxy crowned by a star

Another treasure unearthed from the Hubble archives, this beautiful image shows a spiral galaxy named NGC 4517. Slightly bigger than our Milky Way, it is seen edge-on, crowned by a very bright star. The star is actually much closer to us than the galaxy, explaining why it appears to...
Comparison of the Earth to Neptune

Comparison of the Earth to Neptune

The EarthEarth is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.According to evidence from radiometric dating and other sources, Earth was formed about 4.54 billion years...

Selasa, 29 Maret 2016

Comparison of the Earth to the Rings of Saturn

Comparison of the Earth to the Rings of Saturn

The EarthEarth is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.According to evidence from radiometric dating and other sources, Earth was formed about 4.54 billion years...

Senin, 28 Maret 2016

The unique Red Rectangle: sharper than ever before

The unique Red Rectangle: sharper than ever before

The star HD 44179 is surrounded by an extraordinary structure known as the Red Rectangle. It acquired its moniker because of its shape and its apparent colour when seen in early images from Earth. This strikingly detailed Hubble image reveals how, when seen from space, the nebula, rather than...
Messier 71: an unusual globular cluster

Messier 71: an unusual globular cluster

This spectacular NASA/ESA Hubble Space Telescope image shows a bright scattering of stars in the small constellation of Sagitta (the Arrow). This is the centre of the globular cluster Messier 71, a great ball of ancient stars on the edge of our galaxy around 13 000 light-years from Earth....

Minggu, 27 Maret 2016

Comparison of the Earth to Mercury

Comparison of the Earth to Mercury

The EarthEarth is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.According to evidence from radiometric dating and other sources, Earth was formed about 4.54 billion years...
V1331 Cyg

V1331 Cyg

With its helical appearance resembling a snail’s shell, this reflection nebula seems to spiral out from a luminous central star in this NASA/ESA Hubble Space Telescope image.The star in the centre, known as V1331 Cyg and located in the dark cloud LDN 981 — or, more commonly, Lynds 981...
The Dumbbell Nebula

The Dumbbell Nebula

The Dumbbell Nebula ­— also known as Messier 27 or NGC 6853 — is a typical planetary nebula and is located in the constellation Vulpecula (The Fox). The distance is rather uncertain, but is believed to be around 1,200 light-years. It was first described by the French astronomer and...

Sabtu, 26 Maret 2016

Hubble image of star cluster Messier 15

Hubble image of star cluster Messier 15

This cluster of stars is known as Messier 15, and is located some 35 000 light-years away in the constellation of Pegasus (The Winged Horse). It is one of the oldest globular clusters known, with an age of around 12 billion years.Both very hot blue stars and cooler golden...

Jumat, 25 Maret 2016

NGC 2683: The UFO Galaxy

NGC 2683: The UFO Galaxy

The NASA/ESA Hubble Space Telescope has spotted a UFO — well, the UFO Galaxy, to be precise. NGC 2683 is a spiral galaxy seen almost edge-on, giving it the shape of a classic science fiction spaceship. This is why the astronomers at the Astronaut Memorial Planetarium and Observatory gave...
Quadruple star system DI Cha

Quadruple star system DI Cha

Two stars shine through the centre of a ring of cascading dust in this image taken by the NASA/ESA Hubble Space Telescope. The star system is named DI Cha, and while only two stars are apparent, it is actually a quadruple system containing two sets of binary stars.As this...
Ant-like Space Structure Previews Death of Our Sun

Ant-like Space Structure Previews Death of Our Sun

From ground-based telescopes, the so-called "ant nebula" (Menzel 3, or Mz 3) resembles the head and thorax of a garden-variety ant. This dramatic NASA/ESA Hubble Space Telescope image, showing 10 times more detail, reveals the "ant's" body as a pair of fiery lobes protruding from a dying, Sun-like star.The...

Kamis, 24 Maret 2016

NASA, ESA Telescopes find evidence for Asteroid Belt around star Vega

NASA, ESA Telescopes find evidence for Asteroid Belt around star Vega

This artist's concept illustrates an asteroid belt around the bright star Vega. Evidence for this warm ring of debris was found using NASA's Spitzer Space Telescope, and the European Space Agency's Herschel Space Observatory, in which NASA plays an important role. Astronomers have discovered what appears to be a...
Raining Loops on the Sun

Raining Loops on the Sun

Eruptive events on the Sun can be wildly different. Some come just with a solar flare, some with an additional ejection of solar material called a coronal mass ejection (CME), and some with complex moving structures in association with changes in magnetic field lines that loop up into the...

Rabu, 23 Maret 2016

Solar Storms Ignite X-ray "Northern Lights" on Jupiter

Solar Storms Ignite X-ray "Northern Lights" on Jupiter

Solar storms are triggering X-ray auroras on Jupiter that are about eight times brighter than normal over a large area of the planet and hundreds of times more energetic than Earth’s "northern lights," according to a new study using data from NASA’s Chandra X-ray Observatory. This result is the...
Comparison of the Earth to Saturn

Comparison of the Earth to Saturn

The EarthEarth is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.According to evidence from radiometric dating and other sources, Earth was formed about 4.54 billion years...

Selasa, 22 Maret 2016

Artist's Impression of the surface of Jupiter's Moon Europa

Artist's Impression of the surface of Jupiter's Moon Europa

This artist's concept shows a simulated view from the surface of Jupiter's moon Europa. Europa's potentially rough, icy surface, tinged with reddish areas that scientists hope to learn more about, can be seen in the foreground. The giant planet Jupiter looms over the horizon.Image Credit: NASA/JPL-Caltech...
The Planet full of Water: Mars 4 billion years ago

The Planet full of Water: Mars 4 billion years ago

This artist’s impression shows how Mars may have looked about four billion years ago. The young planet Mars would have had enough water to cover its entire surface in a liquid layer about 140 metres deep, but it is more likely that the liquid would have pooled to form...
Saturn's moon Titan

Saturn's moon Titan

This composite image shows an infrared view of Saturn's moon Titan from NASA's Cassini spacecraft, acquired during the mission's "T-114" flyby on November 13, 2015. The spacecraft's visual and infrared mapping spectrometer (VIMS) instrument made these observations, in which blue represents wavelengths centered at 1.3 microns, green represents 2.0...

Senin, 21 Maret 2016

Messier 78: a reflection nebula in Orion

Messier 78: a reflection nebula in Orion

This image of the reflection nebula Messier 78 was captured using the Wide Field Imager camera on the MPG/ESO 2.2-metre telescope at the La Silla Observatory, Chile. This colour picture was created from many monochrome exposures taken through blue, yellow/green and red filters, supplemented by exposures through a filter...
Solar Eruption

Solar Eruption

A solar eruption gracefully rose up from the Sun on December 31, 2012, twisting and turning. Magnetic forces drove the flow of plasma, but without sufficient force to overcome the Sun’s gravity much of the plasma fell back into the Sun.This four–hour event occurred from 10:20 am to 2:20...

Minggu, 20 Maret 2016

Colliding galaxies: NGC 6240

Colliding galaxies: NGC 6240

NGC 6240 is a peculiar, butterfly- or lobster-shaped galaxy consisting of two smaller merging galaxies. It lies in the constellation of Ophiuchus, the Serpent Holder, some 400 million light-years away. Observations with NASA's Chandra X-ray Observatory have disclosed two giant black holes, about 3,000 light-years apart, which will drift...
Comparison of the Earth to the Great Red Spot of Jupiter

Comparison of the Earth to the Great Red Spot of Jupiter

The EarthEarth is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.According to evidence from radiometric dating and other sources, Earth was formed about 4.54 billion years...
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