Since the space shuttle fleet has retired ( while Hubble still has many years of service life ahead ), there will be no existing or planned spacecraft capable of returning the Hubble to Earth intact, so it is now very unlikely it will ever be on the ground again.

Since the early twentieth century when astronomer Edwin Hubble first hypothesized that redshift shows the universe is expanding, prevailing scientific opinion has been that the current state of the universe is the result of a process described by the Big Bang.

Since Voyager's fly-by, the brightest rings ( Adams and Le Verrier ) have been imaged with the Hubble Space Telescope and Earth-based telescopes, owing to advances in resolution and light-gathering power in Neptune's rings are made from a dark material ; probably a mixture of ice with radiation-processed organics.

Since 2003, Kupperberg has written numerous non-fiction books for young adults, including: Spy Satellites, The Tragedy Of The Titanic, Astronaut Biographies: John Glenn ( a Society Of School Librarians International Honor Book, 2004 ), Critical Perspectives On The Great Depression, The Nature Of Disease, Edwin Hubble And The Big Bang, The History Of The New York Colony, Rodeo Clowns, Origins Of The Action Heroes: Spider-Man, Cutting Edge Careers In Robotics, and In The News: Hurricanes for Rosen Publishing.

Since the shorts were produced during the rise of film noir in cinema, the change was usually represented as a stylized sequence: Clark Kent's silhouette is clearly seen behind a closed door's pebble glass window ( or a shadow thrown across a wall ) as he strips to his Superman costume.

* Synchronization: Since digital information is conveyed by the sequence in which symbols are ordered, all digital schemes have some method for determining the beginning of a sequence.

Since every sequence of real numbers can be used to construct a real not in the sequence, the real numbers cannot be written as a sequence — that is, the real numbers are not countable.

Since the RNA is first separated by size, if only one probe type is used variance in the level of each band on the membrane can provide insight into the size of the product, suggesting alternative splice products of the same gene or repetitive sequence motifs.

Since the publication of the rat genome sequence, and other advances, such as the creation of a rat SNP chip, and the production of knockout rats, the laboratory rat has become a useful genetic tool, although not as popular as mice.

Since the chain termination method of DNA sequencing can only be used for fairly short strands ( 100 to 1000 basepairs ), longer sequences must be subdivided into smaller fragments, and subsequently re-assembled to give the overall sequence.

Since more massive stars use their fusion fuel more quickly than smaller ones, Vega's main sequence lifetime is roughly one billion years, a tenth of our Sun's.

* Since its construction in 1999, it has been a prominent feature in the title sequence of the popular soap opera EastEnders, having been built in that area of London.

Since the attacker normally can't see any reply packets, the sequence number must be guessed in order to hijack the connection.

Since these events recur at different intervals, this particular sequence should be unique: the doctors found only one occurrence of this sequence while searching between 1250 and 1115 BC, the 135-year spread around the putative date for the fall of Troy.

Since the field of constructible points is closed under square roots, it contains all points that can be obtained by a finite sequence of quadratic extensions of the field of complex numbers with rational coefficients.

Since the flag sequence could appear in user data, such sequences must be modified during transmission to keep the receiver from detecting a false frame delimiter.

Since a sequence of two CPT reflections is equivalent to a 360-degree rotation, fermions change by a sign under two CPT reflections, while bosons do not.

Since three separate images were being sent in sequence, if they used existing monochrome radio signaling standards they would have an effective refresh rate of only 20 fields, or 10 frames, a second, well into the region where flicker would become visible.

Since the scope included only deceased figures, the DNB was soon extended by the issue of three supplementary volumes, covering subjects who had died between 1885 and 1900 or who had been overlooked in the original alphabetical sequence.

Since structural prediction of large molecules at an atomic level is largely intractable problem, some biologists introduced ways to predict 3D structure at a primary sequence level.

Since the last episode featured no live acts in the studio, the honour of being the last act to actually perform on a weekly episode of TOTP goes to Snow Patrol with " Chasing Cars " in the penultimate edition, the last act ever featured visually on a weekly Top of the Pops was Girls Aloud, as part of the closing sequence of bands performing on the show throughout the years.

Since then, with the aid of DNA sequence data, it has been confirmed that even the remaining group is not monophyletic.

( Note 33 is the 8th composite number to descend into the prime number 3, the others outside of this sequence being 30, 26, 16, 12 ) Since 33 is a semiprime with both its prime factors being Gaussian primes, 33 is a Blum integer.

Since the Utrecht pages also use Rustic capital script, which the Cuthbert Gospel does not, it allows another basis for comparison with further manuscripts in the sequence.

Since the Supreme Court's decision of that year this is more doubtful ; ;

( Since the time-span of the nation-state coincides roughly with the separate existence of the United States as an independent entity, it is perhaps natural for Americans to think of the nation as representative of the highest form of order, something permanent and unchanging.

Since it is not far from Viareggio, he will visit Puccini's house, as he never fails to do, to pay his respects to the memory of the composer of La Boheme, which he considers one of Puccini's masterpieces.

Since attack serves to stimulate interest in broadcasts, I added to my opening statement a sentence in which I claimed that German youth seemed to lack the enthusiasm which is a necessary ingredient of anger, and might be classified as uninterested and bored rather than angry.

Since the air is a continuum, the network of communication remains intact regardless of the positions or motions of the points ( the people ) in the net.

Since the hazards of poor communication are so great, p can be justified as a habitable site only on the basis of unusual productivity such as is made available by a waterfall for milling purposes, a mine, or a sugar maple camp.

Since the difficulty of drawing the net is great, we will merely discuss it.

Since a civilizational crisis involves also a crisis in private interests and in the ruling class, reaction is normally found among those who feel themselves to be among the ruling class.

Since civilizational change is the most difficult to perceive and analyze, it seldom is given adequate attention.

Since the slogans have little application to reality and are sanctimonious to boot, the applause is faint even in areas of the world where we should expect to find the greatest affection for free government.

Since more is known about Quiney than about any other acquaintance of Shakespeare in Stratford, his career may be followed to its sudden end in 1602.

Since the great flood of these dystopias has appeared only in the last twelve years, it seems fairly reasonable to assume that the chief impetus was the 1949 publication of Nineteen Eighty-Four, an assumption which is supported by the frequent echoes of such details as Room 101, along with education by conditioning from Brave New World, a book to which science-fiction writers may well have returned with new interest after reading the more powerful Orwell dystopia.

Since Laos is of no more purely military value to Moscow itself than it is to Washington, this approach might be expected to head off Mr. Khrushchev for the moment.

Since little is known about autism, and almost nothing has been written for the layman, we'd like to share one experienced mother's comments.

Since the work is done by hand, the only limitation, it is said, `` is that of human conception ''.

Since the apparatus is new, it requires experimentation and changes in technique.

Since the obvious is not always true, the Republican National Committee wisely analyzed its defeat of last autumn and finds that it occurred, as suspected, in the larger cities.

Since he has just shown who is top dog, he may not be ready to receive this highest honor in the gift of the Soviet people.

Since appeals to morality, to humanity, and to sanity have had such small effect, perhaps our last recourse is the deterrent example.

Since the goal of our international planners is a World Government, this Atlantic Community would mark a giant step in that direction for, once American economic autonomy is absorbed, a larger grouping is a question of time.