"ESA's Mars Express supports dramatic landing on Mars
25 July 2012
This artist's concept depicts the moment that NASA's Curiosity rover touches down onto the Martian surface.
The entry, descent, and landing (EDL) phase of the Mars Science Laboratory mission begins when the spacecraft reaches the Martian atmosphere, about 81 miles (131 kilometers) above the surface of the Gale crater landing area, and ends with the rover safe and sound on the surface of Mars.
Entry, descent, and landing for the Mars Science Laboratory mission will include a combination of technologies inherited from past NASA Mars missions, as well as exciting new technologies. Instead of the familiar airbag landing systems of the past Mars missions, Mars Science Laboratory will use a guided entry and a sky crane touchdown system to land the hyper-capable, massive rover.
The sheer size of the Mars Science Laboratory rover (over one ton, or 900 kilograms) would preclude it from taking advantage of an airbag-assisted landing. Instead, the Mars Science Laboratory will use the sky crane touchdown system, which will be capable of delivering a much larger rover onto the surface. It will place the rover on its wheels, ready to begin its mission after thorough post-landing checkouts.
The new entry, descent and landing architecture, with its use of guided entry, will allow for more precision. Where the Mars Exploration Rovers could have landed anywhere within their respective 93-mile by 12-mile (150 by 20 kilometer) landing ellipses, Mars Science Laboratory will land within a 12-mile (20-kilometer) ellipse! This high-precision delivery will open up more areas of Mars for exploration and potentially allow scientists to roam "virtually" where they have not been able to before.
In the depicted scene, Curiosity is touching down onto the surface, suspended on a bridle beneath the spacecraft's descent stage as that stage controls the rate of descent with four of its eight throttle-controllable rocket engines. The rover is connected to the descent stage by three nylon tethers and by an umbilical providing a power and communication connection. When touchdown is detected, the bridle will be cut at the rover end, and the descent stage flies off to stay clear of the landing site.
NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, Calif., manages the Mars Science Laboratory Project for the NASA Science Mission Directorate, Washington.
More information about Curiosity is at http://mars.jpl.nasa.gov/msl/.
Mars Express to record and relay signals from NASA
Diagram showing the overall geometry when Mars Express tracks signals from NASA's MSL during its arrival at Mars.
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Artist's impression of Mars Express
Credits: Alex Lutkus"^ ^;...
Monday, 09:19 AM
At: 38 Unit, PHILIPPINES
During the press conference of her new talk show on GMA News TV “MARS,” morning show host and celebrity mom Suzi Entrata-Abrera revealed to the members of the press her formula for attaining a good balance between work and family life.
As a regular co-host of GMA’s weekday morning show Unang Hirit, Suzi Entrata-Abrera needs to wake up as early as 3:00am from Monday to Friday. But despite her “unusual” schedule, she still puts her family as her top priority.
“[Ang family ko] naman talaga ang priority ko. Kaya hindi talaga ako nagtatrabaho ng weekend kasi sabi ko yun lang yung time na makakasama ko ang mga kids ko mula umaga hanggang gabi, unless it’s a special situation. Maaga din naman natatapos ang taping namin and so when I get home I still catch [my children] before they go to sleep.”
Suzi Entrata-Abrera’s relationship with husband Paolo Abrera is also as sweet as ever. According to her, their sweetness is apparent even when they’re fighting.
“I think we fight well kasi even if nagdidiscuss kami, may iyakan and all, magka-holding hands kami [ni Paolo], may ganun pa rin kaming sweetness sa isa’t isa.”
Asked by Tita Nene Riego how she managed to put a cap on getting heavy with child after giving birth to her third child, Suzi quipped:
“Natututunan din po pala ‘yun. Alam po ng mga taga-health center kung paano po mapa-family planning. Nagkasunod-sunod nga po pero nice naman po that their ages are close to each other now that they’re growing up.”
In MARS, Suzi is going to share the floor with co-host Camille Prats, who also stars in GMA’s primetime series Luna Blanca. According to Suzi even if she lacks sleep, she has far less to complain compared to her much busier co-host.
“Actually naisip ko nung una mahirap talaga kasi ang aga talagang nag-uumpisa ang araw ko until may nakasama akong artista (referring to Camille Pratts) na pagkatapos nito may taping pa, bukas may taping ulit tapos may taping na naman kami sa Thursday, kung mejo mabigat po yung schedule sa akin, mas mabigat po yung [kay Camille].”
MARS will premiere this Monday, June 11. It airs weeknights, 6:00pm, on GMA News TV Channel 11.
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Tags: camille pratts, gma news tv, luna blanca, mars, paolo abrera, suzi entrata-abrera, unang hirit."^ ^;...
Monday, 09:38 AM
At: 38 Unit, PHILIPPINES