Copernical Team
HKU planetary scientists discover evidence for a reduced atmosphere on ancient Mars
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Both Earth and Mars currently have oxidising atmospheres, which is why iron-rich materials in daily life develop rust (a common name for iron oxide) during the oxidation reaction of iron and oxygen. The Earth has had an oxidising atmosphere for approximately two and a half billion years, but before that, the atmosphere of this planet was reducing - there was no rust.
The transition from a Biotech fit for the Red Planet
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NASA, in collaboration with other leading space agencies, aims to send its first human missions to Mars in the early 2030s, while companies like SpaceX may do so even earlier. Astronauts on Mars will need oxygen, water, food, and other consumables. These will need to be sourced from Mars, because importing them from Earth would be impractical in the long term. In Frontiers in Microbiology, scien The geological context of the Mars 2020 landing site through the eyes of DLR
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On Thursday, 18 February 2021, at approximately 21:55 CET, NASA's control centre in Pasadena should receive the radio signal indicating that the Perseverance rover has been gently lowered onto the surface of Mars by a 'sky crane' as part of NASA's Mars 2020 mission. Perseverance's new home will be the floor of a former lake in the Jezero impact crater. There, the mobile laboratory, which is the The Mars Relay Network Connects Us to NASA's Martian Explorers
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A tightly choreographed dance between NASA's Deep Space Network and Mars orbiters will keep the agency's Perseverance in touch with Earth during landing and beyond. When NASA's Mars 2020 Perseverance rover touches down with the Ingenuity Mars Helicopter on the Red Planet on Feb. 18, they won't be alone. From orbit, two robotic buddies will be playing a special role in the event by checking in on Staying long-term on Mars
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The "red planet" in the evening sky seems more and more within reach, as leading space agencies aspire astronaut missions to Mars in the future. Unlike the 1969 moon landing, these missions are designed for a long-term stay, which poses new challenges for science: In addition to a habitat, for example, the few materials brought from Earth must be used efficiently and sustainably to equip and fee NASA ready to land another rover on Mars
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With about 2.4 million miles (3.9 million kilometers) left to travel in space, NASA's Mars 2020 Perseverance mission is days away from attempting to land the agency's fifth rover on the Red Planet. Engineers at NASA's Jet Propulsion Laboratory in Southern California, where the mission is managed, have confirmed that the spacecraft is healthy and on target to touch down in Jezero Crater at around NASA fears gap in astronaut crew at multibillion-dollar space station
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Having spent well over $150 billion on the International Space Station, NASA fears a potential lack of launch vehicles could leave the orbiting platform without a U.S. astronaut and create a potential safety risk.
Such a gap would occur only if a crew had a problem that forced them to leave the space station early, but it would represent a costly "lost opportunity that cannot be regained" Media event: ESA seeks new astronauts
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Video:
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For the first time in 11 years, ESA is looking for new astronauts to work alongside ESA’s existing astronauts as Europe enters a new era of space exploration.
Speakers include Jan Wörner, ESA Director General; Samantha Cristoforetti, ESA astronaut; Tim Peake, ESA astronaut; David Parker, ESA Director of Human and Robotic Exploration; Frank De Winne, ESA Low Earth Orbit Exploration Group Leader, Head of the European Astronaut Centre; Jennifer Ngo-Anh, ESA Research and Payloads Programme Coordinator, Human and Robotic Exploration; Lucy van der Tas, ESA Head of Talent Acquisition.
Press briefings in French, German, Italian, Spanish and Dutch, are
How to spot Mars: See the red planet in the sky the day NASA's Perseverance rover lands
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Last year was the year of Mars launches, and this one will be the year of Mars landings. The Hope Mars mission, launched by the United Arab Emirates, entered its orbit around Mars on February 9, while China's Tianwen-1 rover, now orbiting the planet, will land in May. Meanwhile, Nasa's Perseverance rover will land on the red planet come February 18.
Mars is one of the easiest planets to see in the night sky, blazing bright orange and visible for almost the whole year. It's been high up in the sky since the second half of last year, and you don't need any special equipment to see it.
This means there are some great opportunities to see the planet travelling across the night skies, including just as the Perseverance rover is touching down. The day the rover lands, there will be a close approach of the moon and Mars—meaning they will appear next to each other in the night sky.
It's not every day you get to see a close approach while a rover makes its landing.
A combined map of almost 15,000 dust storms on Mars
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Data in the world of astronomy is spread out in so many different places. There are archives for instruments on individual spacecraft and telescopes. Sometimes all that is needed to get new insight out of old data is to collect it all together and analyze a whole set rather than isolated instances. That is exactly what happened recently when a team from the Harvard Center for Astrophysics collected and analyzed data about almost 15,000 dust storms that have taken place on Mars over the last eight Martian years.
The data used to build the combined database was collected by the Mars Global Surveyor, and Mars Reconnaissance Orbiter, which both take daily images of the whole Martian surface. The database they developed, known as the Mars Dust Activity Database (MDAD) provided a variety of insights into some characteristics of the dust storms that occur so regularly on the red planet.