Sentences with phrase «on nebulas»

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LATE one summer night in 1845, the 3rd Earl of Rosse climbed up to an 18 - metre - high platform to focus a telescope on a nebula known as M51.

Hubble zeroed in on the nebula's core 24 times between August 2000 and April 2001, while Chandra took eight x-ray images during the same interval.

[28] Very little else appears in the scientific literature on this nebula.

Although astronomers publish articles referring to the RCW nebulae almost every month, there seems to be few places on the Internet that bring together information on these nebulae as a whole - unlike, for example, the Messier catalog.

«Annihilation» is based on the Nebula Award - winning first volume of Jeff VanderMeer's Southern Reach Trilogy, adapted by director Alex Garland («Ex Machina»).

I had not heard of this book or author when this book was announced on the Nebula Award list, although I did recently realize that the author and I are friends here in Goodreads.

Not exact matches

Read up on solar nebula theory.

For instance, the light which will allow one to see the great nebula in the constellation Andromeda tonight started coming through the frigid reaches of space before the first man walked on the earth.

It means that the earth on which we live is not the center of the physical universe, but a comparatively small planet revolving round a very average - sized star, which in turn is but one of a hundred thousand million others forming the galaxy we call the Milky Way, and that part of the universe that our existing telescopes have so far penetrated contains about a hundred million star systems or nebulae, similar to our galaxy.

There are millions who have lived and will live on this planet; there may be millions of persons elsewhere in this vastness of God's Creation; there is the natural world itself, from star dust to starry nebulae.

«In both scenarios, Geminga provides exciting new constraints on the acceleration physics in pulsar wind nebulae and their interaction with the surrounding interstellar matter,» she said.

More accurate distances between the most common type of «planetary nebulae» and the Earth can be estimated simply with three sets of data: firstly, the size of the object on the sky taken from the latest high resolution surveys; secondly, an accurate measurement of how bright the object is in the red hydrogen - alpha emission line; and thirdly, an estimate of the dimming toward the nebula caused by so called interstellar - reddening.

«To do this,» explains Antonio Cabrera Lavers, head of astronomy at the GTC and one of the authors of the paper, «we have used for the first time the blue tunable filter of OSIRIS to take a deep image centred on the emission from the recombination lines of one of the oxygen ions in the planetary nebula 6778.»

Dr David Frew, Professor Quentin Parker and Dr Ivan Bojicic, based on a culmination of ten years of research work, developed a new method for measuring more accurate distances between «planetary nebulae» and the Earth.

The different dependence on temperature and density of the recombination lines and the collision lines allows us to infer that the metal rich component is a much colder and denser gas than the major fraction of the gas in the nebula.

Very soon, perhaps in the next millennium or two, the star you can see in the center will shed those last bits of gas on top of it, exposing it fully to space, and the weird lobes of material will glow far more brightly, becoming a planetary nebula proper.

On the probability of detecting nebulae which act as gravitational lenses.

This makes the gas emit light over a range of wavelengths, including the visible, and depending on the atoms which make it up, we see different colours in the nebula.

«During the past few years our group,» says David Jones, an astrophysicist at the IAC and another of the authors on the paper, «has discovered that the planetary nebulae with the biggest discrepancies in their abundances are usually associated with binary central stars which have been through a phase with a common envelope, that is to say the process of expansion of the more massive of the two stars has meant that the other star is orbiting within its outer atmosphere, and the viscosity has brought the stars very close to one another.

Based on a culmination of ten years of research work, the new method to estimate more accurate distances between planetary nebulae and the Earth developed by HKU astronomers promises a new era in scientists» ability to study and understand the fascinating if brief period in the final stages of the lives of low - and mid-mass stars.

This image was taken by the Chandra X-Ray Observatory, and shows very high - energy X-rays in blue, and lower energy X-rays in red (both have been superposed on a sky survey image of stars representing the location of the nebula).

Uncertain krypton measures from earlier probes presented two possibilities: Venusian levels could match Earth's, indicating the two planets probably formed from similar ingredients in the primordial nebula, or they could differ enough to force scientists to toss out their theories on Venus's origins.

Spectacular new observations of vast pillar - like structures within the Carina Nebula have been made using the MUSE instrument on ESO's Very Large Telescope.

The pillars in the nebula were observed by a team led by Anna McLeod, a PhD student at ESO, using the MUSE instrument on ESO's Very Large Telescope.

«The nebula itself isn't growing on this time scale,» says Bond, lead author of a report on the light echoes in the 27 March issue of Nature.

Now that the scientists have a better idea of how long the solar nebula persisted, they can also narrow in on how giant planets such as Jupiter and Saturn formed.

The wide - field optical camera on ESO's VLT Survey Telescope (VST)-- has captured the spectacular Orion Nebula and its associated cluster of young stars in great detail.

The wide - field optical camera on ESO's VLT Survey Telescope (VST)-- has captured the spectacular Orion Nebula and its associated cluster of young stars in great detail, producing this beautiful new image.

Viewing nebulae in different wavelengths (colours) of light gives rise to different visual comparisons on the part of human observers.

The finding presents a complication for astronomers who rely on the Crab nebula's steady brightness as a «standard candle» to calibrate their instruments.

«So even if the solar nebula hadn't disappeared by 4 million years, it was basically on its way out.»

[1] The Orion Nebula has been studied by many of ESO's telescopes, including images in visible light from the MPG / ESO 2.2 - metre telescope (eso1103) and infrared images from VISTA (eso1701) and the HAWK - I instrument on the Very Large Telescope (eso1625).

Just a hundred years ago, a great debate raged about the fuzzy patches on the nighttime sky known as «cloudy stars,» or nebulae.

The reason oxygen isotopes are present in a different pattern is because they are derived from sustained chemical reactions occurring on the surface of the outer solar nebula, rather than from a one - time event.

An injection of aluminum - 26 into the nebula that formed the solar system could have influenced the amount of water on Earth.

Other chapters will include information on the history of astronomy, the different types of telescopes, what is a star, the life cycle of stars, and the Tarantula Nebula.

A new infrared image of the Helix Nebula in the constellation Aquarius is shedding light on the enigmatic object's structure.

Based on measurements of Jupiter and the solar wind, which are thought to preserve the hydrogen isotopic ratio of the protosolar nebula, scientists think nebular water had an extremely light hydrogen isotopic signature — much closer to what the Baffin Island lavas suggest about the deep mantle's water.

Perhaps the species we are familiar with on Earth are in fact the exotic ones, and the buckyballs, the Horsehead Nebula, C3H + and others still unknown are the ordinary stuff of the universe.

Displayed on screen, the data looked like blips on a heart monitor; each wiggle indicated that some molecule in the nebula had emitted light of a particular wavelength.

This means that there must have been some form of mixing over large distances going on in the nebula that gave birth to the sun billions of years ago.

Nebulae are often named based on their key characteristics — particularly beautiful examples include the Ring Nebula (heic1310), the Horsehead Nebula (heic1307) and the Butterfly Nebula (heic0910).

Among the stunning shots taken this week were those of the Lagoon Nebula, about 3600 light years away from Earth; the 47 Tucanae cluster of several million ancient stars about 15,000 light years from Earth; and the face - on barred spiral galaxy NGC 6744 in the star - rich southern constellation of Pavo, about 30 million light years away.

Explore the Cloud in this zoomable image, and click the thumbnail bottom - left to zoom in on the Honeycomb Nebula.

A distant nebula 18,000 light - years away bears a startling resemblance to Earth's humble manatee — down to the «scars» on its back.

The sharp outline of the Baby Eagle Nebula is a tribute to the imaging advances contained in NSF's Mayall Telescope on Arizona's Kitt Peak.

The anatomical heart (the Soul Nebula, or IC 1848) is on the left in this image, whereas the sideways heart symbol (the Heart Nebula, or IC 1805) is on the right.

The Hubble Space Telescope passed its 20th anniversary of reaching orbit on April 24, an occasion marked with the release of a new image from the venerable observatory, depicting a star - forming region of the Milky Way some 7,500 light - years away called the Carina Nebula.

After a few hours or weeks, depending on how super the supercomputer is, a thousand years of planetary nebula history is waiting in the computer's memory to be studied in detail.