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Press Releases

eso8904 — Organisation Release

A Revolution in Ground-Based Direct-Imaging Resolution

11 May 1989: "First Light" with the ESO New Technology Telescope (NTT) was obtained on March 23, 1989 (eso8903) during conditions of exceptionally good "seeing'' and the first images are probably the sharpest ever obtained with a large, ground-based telescope. A full account of the associated events will appear in the June 1989 issue of the ESO Messenger.

eso8903 — Organisation Release

"First Light'' for ESO's New Technology Telescope

23 March 1989: Early this morning, and during superb atmospheric conditions, the 3.5 m ESO New Technology Telescope (NTT) produced its first astronomical images. They completely satisfy the high expectations towards this revolutionary high-tech telescope, the first of its kind in the world. This important milestone was passed less than seven years after the start of the NTT project in 1982 and at the end of a four-year construction phase (various aspects of the New Technology Telescope have been described in eso8801 and eso8805).

eso8902 — Science Release

Is There a Pulsar in Supernova 1987A?

24 February 1989: A recent announcement of the discovery of a pulsar in Supernova 1987A in the Large Magellanic Cloud has excited the world-wide astronomical community. New observations at the La Silla Observatory by a group of European astronomers from the Max Planck Institute for Extraterrestrial Physics and the European Southern Observatory, however, do not confirm the reality of this object. More observations are now needed to settle this important question.

eso8901 — Science Release

The "Southern Crab" Nebula

30 January 1989: Everybody knows the Crab Nebula - that famous object in the northern constellation Taurus (The Bull). It is the remnant of a supernova explosion in the year 1054 and has been studied with all available astronomical techniques. But this nebula does not really resemble the animal whose name it carries! Whoever attached this name to it by the middle of the last century must have had a well developed imagination. Now a "real crab'' has been discovered, a nebula in the southern constellation of Centaurus (The Centaur), which from its appearance on recent pictures made with telescopes at the La Silla Observatory would seem to have more right to associate with crustaceans. To avoid confusion, astronomers now refer to the new object as the "Southern Crab".

eso8809 — Science Release

The Vanishing Star

8 December 1988: Reinhold Häfner, visiting astronomer at the ESO La Silla Observatory, got his life's surprise when the star on the screen in front of him suddenly was gone. All the other stars were still visible, but this particular one had simply vanished.

eso8808 — Organisation Release

ESO Places Contract for World's Largest Mirror Blanks

12 September 1988: After a period of intense negotiation, the European Southern Observatory and Schott Glaswerke, Mainz (F.R.Germany) reached agreement about the delivery of four giant mirror blanks for the ESO Very Large Telescope (VLT) (ESO8716). The blanks will be made of Zerodur, a glass ceramic material. Each will have a diameter of 8.2 metres, an area of more than 50 square metres and a thickness of only 17.5 centimetres.

eso8807 — Science Release

Most Distant Star Ever Seen: Supernova Explodes 5 Billion Years Ago

9 September 1988: The most distant, individual star ever recorded was detected with a telescope at the ESO La Silla observatory on August 9, 1988. The object is an exploding star, a supernova, and is situated in an inconspicuous galaxy, itself a member of a distant cluster of galaxies. Additional observations indicate that the cluster, known as AC118, is at a distance of about 5 billion light-years (1 billion = 1000 million). Thus this supernova explosion occurred 5 billion years ago, or about the time when the Sun and the planets were born. Ever since then, the light emitted by this event has been travelling towards us, only arriving here now. It is the most distant supernova (ESO8802) observed so far.

eso8806 — Science Release

Discovery of a Cloverleaf Quasar in the Sky: A Lot of Hard Work - and a Little Bit of Luck

28 July 1988: Thanks to observations performed under near-perfect conditions at the La Silla observatory, it has been possible to show that the image of a distant quasar consists of no less than four components. Most appropriately, the object has now become known as the cloverleaf quasar. The peculiar image is due to the effect of "gravitational lensing", a phenomenon predicted by Einstein's General Theory of Relativity and explained at the end of this Press Release.

eso8805 — Organisation Release

Completion of the 3.58 m NTT Optical System Inaugurates New Era in Telescope Technology

14 July 1988: On the occasion of the successful completion of the optical figuring of the 3.58 m primary NTT mirror, the European Southern Observatory and Carl Zeiss, FRG, organize a Press Conference on Wednesday, July 13, 14.00 hours, at the Zeiss works in Oberkochen, near Stuttgart, FRG. There will be an opportunity to see the finished mirror on its computer controlled support system and information will be provided about the successful tests of the world's first, large active optics telescope.

eso8804 — Science Release

A Picture of Comet Halley at 1250 Million Kilometres

8 July 1988: A unique picture of Comet Halley has just been obtained by three astronomers with a telescope at the ESO La Silla observatory. An exposure time of almost 12 hours was necessary to show the structure of the famous comet in some detail at the present, very large distance of 1250 million kilometres.

eso8803 — Science Release

Stellar Super Heavyweight Champion Disqualified

19 May 1988: The most massive stars may be less heavy than thought before. Recent observations with two telescopes at the ESO La Silla observatory have now shown that a star in the Large Magellanic Cloud, long believed to be one of the most massive in existence, is in fact multiple and consists of a very compact cluster of hot, young stars. This discovery may have important implications for the theory of stellar birth and the determination of distances in the Universe.

eso8802 — Science Release

Light Echoes from Supernova 1987A in the LMC: Snapshots of Interstellar Clouds

16 March 1988: New and exciting observations at the European Southern Observatory have probed the interstellar space around last year's bright supernova SN 1987A in the Large Magellanic Cloud (LMC)

eso8801 — Organisation Release

Strange Building for the ESO New Technology Telescope Arrives at the La Silla Observatory

9 February 1988: Last week, M/S “Cervo" arrived in the harbour of Valparaiso, Chile, with the packaged parts for the building which will house the ESO New Technology Telescope (NTT). Soon thereafter, the 350 ton load was hauled by road to the ESO La Silla observatory in the Atacama desert, some 600 km north of Santiago de Chile. Here, at one of the best astronomical sites on earth, the giant mechanical puzzle will now be put together to form one of the strangest telescope domes ever seen. The 3.5 m New Technology Telescope is the forerunner of the ESO Very Large Telescope (VLT) (see eso8602 and eso8717). When the NTT is ready later this year, it will be the technologically most advanced telescope in the world.

eso8717 — Organisation Release

Europe Decides To Build The World's Largest Optical Telescope

8 December 1987: The representatives of the eight member states (Belgium, Denmark, the Federal Republic of Germany, France, Italy, the Netherlands, Sweden and Switzerland) agreed that the European Southern Observatory shall embark upon the realization of this marvelous instrument. This decision expresses Europe's confidence in the ambition of her astronomical community and the ingenuity of her high-tech industry; together they will ensure that Europe will be second to none in the exploration of the Universe for a long time to come. The VLT is an essential complement of Europe's astronomical research activities from space vehicles.

eso8716 — Science Release

The Nature of the Mysterious “Luminous Arc” Revealed: A Gravitational Einstein Ring

5 November 1987: The prototype of a new class of astrophysical phenomena has now been interpreted. Studies of other objects of the same type will open entirely new vistas in the exploration of the nature of distant galaxies.

eso8715 — Science Release

Discovery of a New Gravitational Lens System

22 October 1987: The discovery of a new gravitational lens system in the southern constellation Cetus comes as a first exciting and fundamental result obtained by a group of European astronomers in the frame of the systematic search program they are carrying out at the ESO La Silla observatory. Not only did they find that the image of the highly luminous quasar (ESO8712 and ESO8713) UM673 is double, but they were also able to observe the distant galaxy that is responsible for this effect. Continued monitoring of this rare object may actually lead to cosmologically significant results about the size and the age of the Universe.

eso8714 — Organisation Release

Intercontinental Remote Control: Observing with La Silla Telescopes from Garching

29 September 1987: ESO announces the establishment of the world's first system for interactive remote control of ground-based telescopes on another continent.

eso8713 — Science Release

Newly Discovered Quasar Is Most Distant Known Object in the Universe

10 September 1987: A newly discovered quasar (eso8712) has been found to have a record redshift [1] of 4.11 and is therefore the hitherto most distant known object in the Universe.

eso8712 — Science Release

Discovery of a Binary Quasar

15 July 1987: The discovery of what may be the first true binary quasar has been reported by a European-American team of astronomers using a combination of optical, spectral, and radio observations. The pairs of nearly identical quasars, separated by only 4.2 arcseconds projection on the sky, have a redshift of 1.345, corresponding to a distance of some 12 billion light-years from Earth (according to the standard cosmological distance scale) and are apparently associated with the radio source PKS 1145-071 in the constellation Crater [1].

eso8711 — Organisation Release

Astronomers and Physicists Meet at ESO at the First Full-Scale International Conference on Supernova 1987A

8 July 1987: The first full-scale, international meeting about the bright Supernova 1987A in the Large Magellanic Cloud (LMC) was held at the European Southern Observatory in Garching near Munich on July 6 - 8, 1987. ESO was a natural meeting place in view of the many different observational studies of SN 1987A which have been carried out at the ESO La Silla observatory.

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