Beagle 2 Major contractors EADS Astrium Mission type Lander Launch date 2 June 2003 17:45:00 UTC Carrier rocket Soyuz-FG/Fregat Launch site Baikonur Cosmodrome Kazakhstan Mission duration 2003-12-25 03:54:00 UTC Mission failure on day 206 COSPAR ID 2003-022C Homepage beagle2.open.ac.uk Mass 33.2 kg Instruments Data rate 2 or 8kbps / 2 to 128kbps

Beagle 2 was an unsuccessful British landing spacecraft that formed part of the European Space Agency's 2003 Mars Express mission. All contact with it was lost upon its separation from the Mars Express six days before its scheduled entry into the atmosphere. A subsequent investigation concluded that Beagle 2 had reached the surface of Mars but likely suffered a hard landing due to failure of one or more of its systems. The Beagle 2 was named after the HMS Beagle which twice carried Charles Darwin during expeditions which would later lead to the theory of evolution. Contents 1 Background 2 Spacecraft and subsystems 3 Mission profile 4 Mission progress 5 ESA/UK inquiry report 6 Beagle 2 in fiction 7 See also 8 References 9 External links Background

Beagle 2 was conceived by a group of British academics headed by Professor Colin Pillinger of the Open University in collaboration with the University of Leicester. Its purpose was to search for signs of life on Mars past or present and its name reflected this goal as Professor Pillinger explained: "HMS Beagle was the ship that took Darwin on his voyage around the world in the 1830s and led to our knowledge about life on Earth making a real quantum leap. We hope Beagle 2 will do the same thing for life on Mars."

A point at 10.6N 270W in Isidis Planitia a large flat sedimentary basin that overlies the boundary between the ancient highlands and the northern plains of Mars was chosen as the landing site. The lander was expected to operate for about 180 days and an extended mission of up to one Martian year (687 Earth days) was thought possible. The Beagle 2 lander objectives were to characterize the landing site geology mineralogy geochemistry and oxidation state the physical properties of the atmosphere and surface layers collect data on Martian meteorology and climatology and search for possible signatures of life.

Pillinger set up a consortium to design and build Beagle 2. The principal members and their initial responsibilities were: Open University - Consortium leader & scientific experiments University of Leicester - Project management Mission management Flight Operations Team instrument management and scientific experiments Astrium - Main industrial partner Martin-Baker - Entry descent and landing system Logica - Cruise entry descent and landing software SciSys - Ground segment and lander software University of Wales Aberystwyth - Robotic arm

In 2000 when the main development phase started Astrium took over responsibility for program management and Leicester assumed responsibility for mission management which involved the preparations for the operations post launch and the operations control center.

In an effort to publicize the project and gain financial support its designers sought and received the endorsement and participation of British artists. The mission's call-sign was composed by the band Blur and the 'test card' (Calibration Target Plate) intended for calibrating Beagle 2's cameras and spectrometers after landing was painted by Damien Hirst.

The Lander Operations Control Centre (LOCC) was located at the National Space Centre in Leicester from which the spacecraft was being controlled and was visible to the public visiting the center. The control center included operational systems for controlling the Beagle 2 analysis tools for processing engineering and scientific telemetry virtual reality tools for preparing activity sequences communications systems and the Ground Test Model (GTM). The GTM was composed of various builds of the Beagle 2 systems collected together to provide a full set of lander electronics. The GTM was used nearly continuously to validate the engineering and science commands to rehearse the landing sequence and to validate the onboard software. Spacecraft and subsystems

Beagle 2 had a robotic arm known as the Payload Adjustable Workbench (PAW) designed to be extended after landing. The PAW contained a pair of stereo cameras a microscope (with a 6 micrometre resolution) a Mssbauer spectrometer an X-ray spectrometer a drill for collecting rock samples and a spotlamp. Rock samples were to be passed by the PAW into a mass spectrometer and gas chromatograph in the body of the lander - the GAP (Gas Analysis Package) to measure the relative proportions of different isotopes of carbon. Since carbon is thought to be the basis of all life these readings could have revealed whether the samples contained the remnants of living organisms.

In addition Beagle 2 was equipped with a small "mole" (Planetary Undersurface Tool or PLUTO) to be deployed by the arm. PLUTO had a compressed spring mechanism designed to enable it to move across the surface at a rate of 20 mm per second and to burrow into the ground and collect a subsurface sample in a cavity in its tip. The mole was attached to the lander by a power cable which could be used as a winch to bring the sample back to the lander. The lander had the shape of a shallow bowl with a diameter of 1m and a depth of 0.25 m. The cover of the lander was hinged and folded open to reveal the interior of the craft which holds a UHF antenna the 0.75 m long robot arm and the scientific equipment. The main body also contained the battery telecommunications electronics and central processor heaters and additional payload items (radiation and oxidation sensors). The lid itself further unfolded to expose four disk-shaped solar arrays. The lander package had a mass of 69 kg at launch but the actual lander would have been only 33.2 kg at touchdown. The ground segment itself was derived from the European Space Agency software kernel known as SCOS2000. In keeping with the low cost theme of the mission the control software was the first of its type deployed on a laptop. Mission profile Mars Express launched from Baikonur on 2 June 2003 at 17:45 UTC (18:45 BST). The Beagle 2 was a Mars lander initially mounted on the top deck of the Mars Express Orbiter. It was released from the Orbiter on a ballistic trajectory towards Mars on the 19th of December 2003 at 8:31 UT. Beagle 2 coasted for six days after release and was scheduled to enter the Martian atmosphere at over 20000 km/h on the morning of the 25th of December. The lander was protected from the heat of entry by a heatshield coated with NORCOAT an ablating material made by EADS. Compression of the martian atmosphere and radiation from the hot gas are estimated to have led to a peak heating rate of around 100 W/cm comparable to the heat flux experienced by Mars Pathfinder. After deceleration in the Martian atmosphere parachutes were to be deployed and about 1 km above the surface large airbags were to inflate around the lander and protect it when it hit the surface. Landing was expected to occur at about 02:45 UT on 25 December (9:45 p.m. EST 24 December). After landing the bags were supposed to deflate and the top of the lander was to open. A signal was supposed to be sent to Mars Express after landing and another the next (local) morning to confirm that Beagle 2 survived the landing and the first night on Mars. A panoramic image of the landing area was then supposed to be taken using the stereo camera and a pop-up mirror after which the lander arm would have been released. The lander arm was to dig up samples to be deposited in the various instruments for study and the "mole" would have been deployed crawling across the surface to a distance of about 3 metres from the lander and burrowing under rocks to collect soil samples for analysis. The British government spent more than 22 million (US$40 million) on Beagle 2 with the remainder of the total 44 million (US$80 million) coming from the private sector.1 Mission progress Although the Beagle 2 craft successfully deployed from the Mars Express "mother ship" confirmation of a successful landing was not forthcoming. Confirmation should have come on 25 December 2003 when the Beagle 2 should have contacted NASA's 2001 Mars Odyssey spacecraft that was already in orbit. In the following days the Lovell Telescope at Jodrell Bank also failed to pick up a signal from Beagle 2. The team said they were "still hopeful" of finding a successful return signal. Attempts were made throughout January and February 2004 to contact Beagle 2 using Mars Express. The first of these occurred on 7 January 2004 but ended in failure. Although regular calls were made particular hope was placed on communication occurring on 12 January when Beagle 2 was pre-programmed to expect the Mars Express probe to fly overhead and on 2 February when the probe was supposed to resort to the last communication back-up mode: Autotransmit. However no communication was ever established with Beagle 2. Beagle 2 was declared lost on 6 February 2004 by the Beagle 2 Management Board. On 11 February ESA announced an inquiry would be held into the failure of Beagle 2. On 20 December 2005 Professor Pillinger released specially-processed images from the Mars Global Surveyor which suggested that Beagle 2 came down in a crater at the landing site on Isidis Planitia.2 It was claimed that the blurry images show the primary impact site as a dark patch and a short distance away Beagle 2 surrounded by the deflated airbags and with its solar panels extended.3 However Mars Reconnaissance Orbiter's HiRISE camera subsequently observed the area in February 2007 and revealed that the crater was empty.4 While that mission ended in disaster the Mars Express Orbiter that carried the Beagle 2 to Mars has been a success. Failures in missions to Mars are common. As of 2010 of 38 launch attempts to reach the planet only 19 have succeeded. See the so-called Mars Curse for details. ESA/UK inquiry report In May 2004 the report from the Commission of Inquiry on Beagle 2 was submitted to ESA and the UK's science minister Lord Sainsbury.5 Initially the full report was not published on the grounds of confidentiality but a list of 19 recommendations was announced to the public. Professor David Southwood ESA's director of science provided four scenarios of possible failures: Beagle entered in atmospheric conditions outside the range assumed by its designers and could have burnt up. The scenario that it may have "bounced off into space" has been put forward but this does not stand up to close technical scrutiny. The amount of dust in the atmosphere often varies widely changing its density and temperature characteristics. However the chosen margins on the design of the heat shield and the thermal loads it can withstand are such that the burn-up scenario is unlikely and even the worst case density variations certainly are not such that given the steep entry flight path angle at entry the craft could conceivably have left the atmosphere again (see also Section 6.1 of the Inquiry Report which states explicitly: "the Commission concludes that deviation of the atmospheric entry conditions is not a probable failure mode of the mission"; The probe's parachute or cushioning airbags failed to deploy or deployed at the wrong time. This is supported by the observation that throughout the transfer to Mars the outgassing of some substance and subsequent condensation on optical components of the Mars Express spacecraft carrying the Beagle lander was observed. This observation would be consistent with a leak in the gas generators of Beagle's airbags; Beagle's backshell tangled with the parachute preventing it from opening properly. It is not clear whether the difference in air drag between the probe with the parachute deployed and the back shell of the heat shield is sufficient to guarantee a safe separation distance (see Section 5.4.4 of the Inquiry Report); Beagle became wrapped up in its airbags or parachute on the surface and could not open. Entanglement with the parachute appears plausible in view of the fact that the parachute's strop was shortened from the original design to save mass. Assuming that the airbags deployed Beagle would in the scenario have bounced off the surface right back into the descending parachute (see also Section 5.4.6 of the Inquiry Report); In addition further scenarios appear plausible and consistent with the available body of data: Beagle may have jettisoned its airbags too early before it had come to a complete rest on the surface. For mass and cost reasons the airbag jettison device was designed to be triggered by a timer rather than by acceleration sensors that would have discerned when the lander package had stopped moving. Given that the landing package of NASA's Spirit rover mission rebounded off the surface in Gusev crater numerous times before coming to a standstill - taking much more time than anticipated - Beagle's timer may have been set to a too short time (see Section 5.4.8 of the Inquiry Report); The parachute deployment sequence was designed triggered by three accelerometers. The system was not designed for a "best out of three" logic. Rather the first accelerometer to compute that a safe deployment velocity had been reached would trigger the parachute deployment sequence even if the accelerometer readout were faulty; In February 2005 following comments from the House of Commons Select Committee on Science and Technology the report was made public and Leicester University independently published a detailed mission report including possible failure modes and a "lessons learned" pamphlet. Beagle 2 in fiction Beagle 2 was inaccurately portrayed as a rover and a JPL and NASA project in the 2007 teaser trailer of the first Transformers movie. After landing on Mars it was revealed it was destroyed by a Decepticon 13 seconds after being activated. Afterwards the incident was classified above Top Secret by the US government and declared a complete failure to the public (saying it crashed on Mars instead) but later became a warning that the Transformers were coming to Earth. The plot of the Doctor Who episode "The Christmas Invasion" involves a fictional British robot probe to Mars scheduled to touch down on Christmas Day which fails in its mission (though in this story due to alien intervention). In the Facebook game Assassin's Creed: Project Legacy Chapter 1 of the Holiday Set involves Beagle 2 being secretly co-opted by an unspecified organization a freelance spy having hidden the lander's survival from everyone else at Mission Control while rerouting its controls to a laptop that she handed over to her handler. See also Beagle 3 (cancelled) Life on Mars Atmospheric reentry Unmanned space missions References Jane Wardell (24 May 2004). "Beagle Mission Hampered by Funding Management Problems". Associated Press. http://www.space.com/news/beagleupdate040524.html. Retrieved 2009-04-22.  "Possible evidence found for Beagle 2 location". ESA. 21 December 2005. http://www.esa.int/esaMI/MarsExpress/SEMAPB8A9HE1.html. Retrieved 2009-04-22.  Pallab Ghosh (20 December 2005). "Beagle 2 probe 'spotted' on Mars". BBC News. http://news.bbc.co.uk/1/hi/sci/tech/4542174.stm. Retrieved 2009-04-22.  "Portion of Beagle 2 Landing Ellipse in Isidis Planitia (PSP002347915)". HiRISE. University of Arizona. 26 January 2007. http://hiroc.lpl.arizona.edu/images/PSP/diafotizo.phpIDPSP0023471915. Retrieved 2009-04-22.  R. Bonnefoy et al (5 April 2005) (.PDF). Beagle 2 ESA/UKCommission of Inquiry. ESA and UK Ministry of Science and Innovation. http://www.bnsc.gov.uk/assets/channels/resources/press/report.pdf. Retrieved 2009-04-22.  External links Official website Mars Express Beagle 2 Mission Profile by NASA's Solar System Exploration BBC guide to Beagle 2 Beagle 2 may have sped to its death (New Scientist 8 March 2004 ) University of Leicester Mission Report and Lessons Learned v d eFailed and cancelled Mars missions Failed at launch Mars 1M program (Mars 1960A and 1960B)  Mars 2MV-4 No.1  Mars 2MV-3 No.1  Mariner 3  Mars 2M No.521  Mars 2M No.522  Mariner 8  Kosmos 419  Mars 96 Failed en route Mars 1  Zond 2  Mars 6  Mars 7  Phobos 1  Mars Observer  Nozomi  Mars Climate Orbiter  Mars Polar Lander  Deep Space 2  Beagle 2 Cancelled (year cancelled) Voyager  Marsokhod (Mars 4NM)  Mars sample return (Mars 5NM)  Mars Surveyor 2001 Lander  NetLander  Mars Telecommunications Orbiter  Beagle 3  Mars Astrobiology Explorer-Cacher (2011) v d e 2002    Orbital launches in 2003    2004 Coriolis ICESat  CHIPSat STS-107 (SpaceHab RDM  EDO) SORCE USA-166  XSS-10 Progress M-47 Intelsat 907 USA-167 IGS-1A  IGS-1B USA-168 Molniya-1 #92 USA-169 INSAT-3A  Galaxy 12 AsiaSat-4 Kosmos 2397 Soyuz TMA-2 GALEX GSAT-2 Hayabusa (Minerva) HellasSat 2 Beidou 1C Mars Express (Beagle 2) Kosmos 2398 AMC-9 Progress M1-10 Thuraya 2 Spirit Optus and Defence C1  BSat-2C Molniya-3 #53 Orbview-3 Monitor-E GVM  Mimosa  DTUSat  MOST  Cute-I  QuakeSat  AAU-Cubesat  CanX-1  Cubesat XI-IV Opportunity Rainbow 1 EchoStar IX Kosmos 2399 SCISAT-1 Kosmos 2400  Kosmos 2401 Spitzer Progress M-48 USA-170 USA-171 PS-2 Mozhaets-4  NigeriaSat-1  UK-DMC  BILSAT-1  Larets  STSAT-1  Rubin-4 Eurobird 3  INSAT-3E  SMART-1 Galaxy 13/Horizons 1 Shenzhou 5 Resourcesat-1 Soyuz TMA-3 USA-172 CBERS-2  Chuang Xin 1 SERVIS-1 FSW-18 Shen Tong 1 Yamal-201  Yamal-202 IGS-2A  IGS-2B USA-173 Gruzomaket Kosmos 2402  Kosmos 2403  Kosmos 2404 USA-174 USA-175 Amos-2 Ekspress AM-22 Tan Ce 1 Payloads are separated by bullets (  ) launches by pipes ( ). Manned flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in brackets.