OrbitalHub

Credits: ESA

The Fifth European Conference on Space Debris is hosted by ESA. The conference takes place at ESA’s Space Operations Centre (ESOC) in Darmstadt, Germany, for four days beginning March 30.

The space debris in Earth orbit has been attracting attention due to the direct threat that it poses to current and future space missions. Long-term protection of the low-Earth and geosynchronous orbital zones is essential for the development of commercial activities in space.

“Our ability to safely use outer space in the long term is not guaranteed,” said Gerard Brachet, a past Chairman of the UN Committee on the Peaceful Uses of Outer Space (UNCOPUOS), speaking during today’s opening speech. He added that: “Increased crowding in low Earth orbits as well as the geostationary orbit creates new challenges.”

The first artificial satellite was launched in 1957 by the Soviet Union. Since then, almost 5000 launches have placed around 6000 satellites into orbit. Today, the 800 operational satellites count for only six percent of the catalogued orbit population. Decommissioned satellites, spent upper stages, mission-related objects, and fragments make up the rest. More than half of the debris originates from around 200 fragmentations that occurred in orbit. Except for few accidental collisions, these fragmentations were explosions of spacecraft and upper stages.

Mitigation measures have to be implemented. Among these, reducing the number of explosions, minimizing the number of objects released during spacecraft operations (also known as mission-related objects or MRO), re-orbiting satellites, and returning spacecraft and rocket stages to Earth after completion of their mission.

The main sponsor of the conference is ESA and co-sponsors are the Italian space agency (ASI), the British National Space Centre (BNSC), the French space agency (CNES), the German Aerospace Center (DLR), the Committee on Space Research (COSPAR), and the International Academy of Astronautics (IAA).

For more details about the conference, you can visit the ESA website.

Credits: Orbital

Carnival of Space #96 is hosted by Ian O’Neill at astroENGINE.

Lots of good questions and answers this week. I will borrow a few from Ian… Who was the first woman to travel in space? Can liquid water exist on the surface of Mars? Where are the most energetic particles in the Universe born? You can find the answers at astroENGINE.

This week, OrbitalHub presents the Taurus launch vehicle. Taurus is a four-stage, inertially guided, all solid fuel, ground launched vehicle, designed and built by Orbital Sciences Corporation. In a typical mission, Taurus can inject a 1,350 kg payload in low Earth orbit (LEO).

DIRECT is an alternative approach to launching missions planned under NASA\’s new mandate: The Vision for Space Exploration (VSE). DIRECT is proposing one single “Jupiter” launch vehicle. “Jupiter” would be able to perform both roles of Ares-I Crew Launch Vehicle (CLV) and Ares-V Cargo Launch Vehicle (CaLV).

Read more about DIRECT…

Soyuz TMA-14 launched from Baikonur Cosmodrome on March 26, 2009. This is a Soyuz flight to the International Space Station, carrying two members of the Expedition 19 crew (Gennadi Padalka and Michael Barratt) and spaceflight participant Charles Simonyi on his second paying flight to the station.

Credits: Arianespace

An updated version of the Soyuz launch vehicle will liftoff at the end of the year from the European Spaceport at Kourou in French Guyana.

Soyuz will complete the range of launchers operated by Arianespace, which already includes the Ariane 5, with the Vega small launcher soon to come.

The construction of the Soyuz site in Guyana has reached a major milestone: the construction of the launch system has begun. The launch system supports and services the launch vehicle when it is erected for liftoff.

The concrete launch pad supports a multi-segment steel ring inset (known as the support crown). Two umbilical masts have also been positioned on top of the support crown. The masts, together with four support booms, will keep the launch vehicle in position on the launch pad. The two towers visible at the launch site will protect the Soyuz vehicle from lightning strikes.

Credits: Arianespace

One interesting detail about the launch site is that the support crown is fixed on the launch pad, in contrast to the launch pads built for Soyuz in Russia and Kazakhstan, as the updated Soyuz operated from Kourou is able to manage the launch azimuth during ascent.

You can read more about the Kourou Spaceport on the Arianespace website.

Astronaut Mike Fincke takes you on a tour of the International Space Station. The International Space Station is the biggest man-made structure orbiting the Earth in LEO. The construction of the space station started in 1998.

Read more about the ISS…