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En aquesta secció hi anirem posant tot aquell material generat en algun moment o altre en la història de l’Agrupació i que ha tingut com a objectiu apropar els coneixements científics al públic en general.

Articles publicats a la premsa comarcal.

2019

Anteriors

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ESA
NASA
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Second space data highway satellite set to beam

EDRS-C

The second satellite in the European Data Relay System has reached its intended orbit and completed its in-orbit tests.

Dubbed the “SpaceDataHighway” by its commercial operator Airbus, EDRS uses innovative laser technology to enable Earth-observation satellites to deliver their information to users on the ground in near real-time, accelerating responses to emergency situations and spurring the development of new services and products.

EDRS-C is the second satellite in the system and was launched on 6 August.

Microbial wipe down

Image:

Sometimes doing science is as simple as wiping up. NASA astronaut Jack Fisher is seen here using a wet wipe on the surfaces of the European Cupola module of the International Space Station.

Doubling as both Station maintenance and science experiment, Jack collected microbes living on the surfaces of his orbital home for ESA’s Extremophiles experiment. Headed by Dr. Christine-Moissl Eichinger from the Medical University of Graz, Austria, the experiment studies how microbes settle into the harsh environment of space.

Cosmic radiation exposes not only humans but also bacteria, fungi, and other microorganisms to cellular stress. A typical stay in microgravity for an astronaut weakens the immune system and causes more health issues, prompting researchers to ask whether the same was happening to microbiomes, or the organisms found in a particular environment, and whether they resist treatment, becoming ‘super bugs.’

Because the Space Station is a closed environment, microbes can only arrive with new crew and cargo. The Station has accumulated a core group of 55 microbes over 20 years of continuous human inhabitants.

Researchers tested these against microbes found in a similar environment on Earth: spacecraft cleanrooms. They found that space-based microbes did not have a higher resistance and were not more stressed than Earth-based ones.

In short, microbes are no more extremophilic – able to survive in uninhabitable environments – in the weightless and radiative environment of space. The results were recently published in a paper in Nature Communications.

Interestingly, researchers found that space-based microbiomes can react negatively to metal surfaces, especially when those surfaces are wet. As they struggle to adapt to their environment, they attack the metal surfaces they find themselves on by corroding them or creating biofilm.

Researchers and crew are monitoring the situation by keeping metal surfaces dry and easily accessible for regular cleaning and sampling.

After all, there is no getting rid of microbes or any need to. They are a fact of human life.

Call for media: ESA astronaut Luca Parmitano returns from commanding the Space Station

Press Release N° 28–2020

ESA astronaut Luca Parmitano is returning to Earth after six months on the International Space Station. He will land with Alexander Skvortsov and Christina Koch in Kazakhstan on 6 February 2020 after 201 days in space. Luca will fly directly to ESA’s European Astronaut Centre (EAC) in Cologne for an expected arrival around 21:00 GMT (22:00 CET).

Warming up for the Sun

Solar Orbiter facing the Sun close up

Today, the Solar Orbiter control team is simulating launch for the penultimate time, before the Sun-seeking spacecraft lifts-off for real.

Call for Media: Solar Orbiter launch to face the Sun

Press Release N° 27–2020

ESA’s new Sun explorer will be launched from Cape Canaveral on 6 February. Media are invited to Europe’s mission control centre in Darmstadt, Germany, to follow the launch and moment of signal acquisition.

Globular Star Cluster NGC 6752

Some 13,000 light-years away toward the southern constellation Pavo,

The Hyades Star Cluster

It is the closest cluster of stars to the Sun.

Parker: Sounds of the Solar Wind

What does the solar wind sound like?

Quadrantid Meteors through Orion

Why are these meteor trails nearly

M1: The Incredible Expanding Crab Nebula

Are your eyes good enough to see the Crab Nebula expand?

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