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| Ulysses results inspire a big discovery about the Sun's behaviour |
| The strength of the Sun's magnetic field has doubled during the 20th
Century, according to calculations by British scientists. This finding
will help to clarify the Sun's contribution to climate change on the
Earth. A team at the Rutherford Appleton Laboratory near Oxford has been
able to work out the recent history of the Sun's magnetic behaviour,
thanks to the unprecedented overview of solar magnetism provided by the
ESA-NASA spacecraft Ulysses.
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| Date: 03 Jun 1999 |
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| Ulysses is investigating what lies between us and the stars |
| In addition to its well-known role as explorer of the region of space above the poles of our star the Sun, ESA's Ulysses spacecraft has provided scientists with a glimpse of conditions in the distant reaches of space beyond the boundary of the heliosphere. Instruments on board the out-of-ecliptic pathfinder are making unique measurements of dust particles and gas from the cloud of interstellar material surrounding the heliosphere, allowing scientists to learn more about the history of our solar system. These and other results from the Ulysses mission, now in its ninth year of highly successful operations, are featured in an article by the ESA project scientist, Richard Marsden, in the June issue of the popular astronomy magazine, Astronomy Now.
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| Date: 21 May 1999 |
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| Ulysses scientists try to catch the solar wind |
| More than 50 scientists met at the European Space Research and Technology
Centre (ESTEC) in Noordwijk, Netherlands, on 14, 15 and 16 April to discuss the latest scientific results to come from the Ulysses out-of-ecliptic
mission. |
| Date: 20 Apr 1999 |
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| Ulysses Science Working Team meeting |
| Scientists from around the world are meeting next week (April 14) to discuss the latest results and science operations issues connected with the Ulysses mission. |
| Date: 09 Apr 1999 |
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| ESA Research Fellow wins 1999 Scarf Award |
| Dr David Lario, Research Fellow in the Solar System Division of the Space Science Department of ESA has been selected as the winner of the 1999 Scarf Award.
This award given to the graduate student judged to have presented and defended the best PhD dissertation in the period under review. |
| Date: 03 Mar 1999 |
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| Ulysses prepares for new adventure |
| Fifty scientists from seven countries met last week to set detailed goals
for the ESA/NASA Ulysses mission at solar maximum. |
| Date: 06 Nov 1998 |
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| Ulysses and the 'Mystery Force' |
| Recent reports have created a stir among scientists studying the effects of gravity. A team lead
by John Anderson, a planetary researcher at the Jet Propulsion Laboratory in Pasadena, has
been conducting an experiment in celestial mechanics using the radio signals from spaceprobes
far from the Earth, including Pioneers 10 and 11, and Ulysses. In all cases, Anderson and his
colleagues found that an unexplained Sun-directed force appears to be acting on the spacecraft. |
| Date: 15 Oct 1998 |
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| Ulysses furthest from Earth 28 August |
| The distance between Earth and Ulysses reached its maximum value on 28 August.
the spacecraft and its home base are separated by 951 million kilometres (6.36 times the
Sun-Earth distance). |
| Date: 17 Sep 1998 |
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| INFO 13-1998: Ulysses comes full circle, before revisiting the Sun's poles |
| On 17 April, after travelling for more than seven years and covering 3.8 billion kilometres, the space probe Ulysses will complete its first orbit of the Sun. Built in Europe for the European Space Agency, this intrepid explorer has ventured into regions never before visited by any spacecraft. It has journeyed far away from the realm of the planets and gone over the poles of the Sun. |
| Date: 15 Apr 1998 |
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| PR 29-1995: Ulysses reaches maximum latitude over the Sun's northern pole |
| ESA's Ulysses Spacecraft, the first probe ever to fly over the poles of the Sun, climbed to its maximum latitude of 80.2 degrees north of the Sun's equator on 31 July 1995, thereby passing another milestone on its historic mission to survey the Sun's environment from a unique vantage point in space. |
| Date: 29 Aug 1995 |
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| INFO 11-1995: Ulysses sees differences in solar wind at high, low latitudes |
| The Uysses spacecraft, on its way to the northern pole of the Sun, has confirmed global differences in solar wind speed after completing the first phase of its high-latitude journey over the southern pole of the Sun. |
| Date: 06 Jun 1995 |
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| PR 26-1994: Ulysses discovers the mysteries of the Sun's south pole |
| The pass over the Sun's south pole currently being carried out by ESA's probe Ulysses(*) has so far been a total success and has already yielded a first clutch of surprise results concerning this unexplored region. |
| Date: 16 Sep 1994 |
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| PR 25-1994: Ulysses reaches the South Pole of the Sun |
| After almost four years, an exploratory voyage crossing regions of the cosmos never before visited by spacecraft is approaching its climax. On 13 September 1994, ESA's Ulysses spaceprobe will reach a point less than 10 degrees from the Sun's south pole. |
| Date: 30 Aug 1994 |
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| PR 30-1993: Ulysses breaks latitude record |
| On 9 June 1993, ESA's Ulysses spaceprobe became the first spacecraft to reach a latitude of more than 32 degrees relative to the Sun's equator. In doing so, Ulysses broke the existing record held by Voyager 1, which is currently exploring the depths of space beyond the solar system at a distance of more than 50 AU from the Sun (1 astronomical unit (AU) = 150 million km). |
| Date: 09 Jun 1993 |
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| PR 13-1993: Searching for gravity waves in space |
| Three interplanetary spacecraft, ESA's Ulysses and NASA's Mars Observer and Galileo, now quietly heading towards separate destinations (the poles of the Sun, Mars and Jupiter respectively), may soon prove the existence of waves in the universe's gravitational field by bobbing on ripples in space like corks bobbing on ripples in a pond. |
| Date: 19 Mar 1993 |
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