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If the calculations show that the debris is approaching the station at an unacceptably close range, the six astronauts will receive the order to take shelter in the two Russian Soyuz spacecraft which are docked with the ISS

it was already too late to carry out a manoeuvre to "divert the station from the rubbish"

100 square feet;

NASA is, rather, testing the deployment mechanism.

In 2008, engineers were given just four months to devise a solar sail. They pulled it off, but the rocket carrying the sail experienced launch failure.

The problem: Where can servers that store data frequently seen as unsavory be kept? The solution: Hanging from a giant balloon in the sky?

this idea isn't totally practical, since the group has limited resources and an airborne server presents a whole host of problems

ther suggestions included a low-level satellite

“superb from a science standpoint,” but beyond Europe’s current budget

There was some questioning of the cost estimate for Euclid, but at some point you have to decide: Either you don’t believe the estimates that [ESA science program managers] produced, or you assume their estimates are credible. Euclid was the one mission where costs were debated, but the consensus was to use the cost estimates presented to us.

a team reports studying the turbulent flow of solar wind particles by monitoring the accompanying waves of magnetic field. The team used a cluster of satellites to measure the field in unprecedented spatial detail. They found that the waves aren't equally strong in all directions but are larger in certain preferred directions, as theorists had predicted. The observation will help astrophysicists better understand the consequences of the solar wind, including its effect on the transmission of cosmic rays, particles that arrive at Earth from elsewhere in our galaxy.