Gaia clocks speedy cosmic expansion

Artwork Gaia and Milky Way Image copyright ESA
Image caption Artwork: Gaia is making the definitive map of our Milky Way Galaxy

Europe’s Gaia space telescope has been used to clock the expansion rate of the Universe and - once again - it has produced some head-scratching.

The reason? The speed is faster than what one would expect from measurements of the cosmos shortly after the Big Bang.

Some other telescopes have found this same problem, too.

But Gaia’s contribution is particularly significant because the precision of its observations is unprecedented.

“It certainly ups the ante,” says Adam Riess from the Space Telescope Science Institute (STScI) and the Johns Hopkins University, both in Baltimore, Maryland, US.

Read full article Gaia clocks speedy cosmic expansion

Falcon blast to reverberate across space industry

Explosion Image copyright TIA GRANT
Image caption A thick pall of smoke drifts across the Cape after the explosion

It is usual for SpaceX to do a "hot fire" test a few days before a launch.

The procedure involves holding down the Falcon 9 on its launch pad and then igniting its Merlin engines.

Read full article Falcon blast to reverberate across space industry

Quakes 'ever present' for Apennines

Amatrice quake Image copyright Reuters
Image caption Every so often, one of the faults that run along the Apennines will rupture

Quakes are the ever present danger for those who live along the Apennine mountain range in Italy.

Through the centuries thousands have died as a result of tremors equal to, or not much bigger than, the event that struck in the early hours of Wednesday.

Read full article Quakes 'ever present' for Apennines

Aeolus space laser catches a following wind

Artwork Image copyright ESA
Image caption The mission's full name is Atmospheric Dynamics Mission (ADM-Aeolus)

Europe’s Aeolus space laser mission, which is designed to make unprecedented maps of Earth’s winds, has reached a long-awaited key milestone.

Engineers at Airbus in the UK have finally managed to bolt together all the elements of the satellite after overcoming major technical challenges.

Read full article Aeolus space laser catches a following wind

Where next for solar-powered flight?

Solar Impulse Image copyright KARIM SAHIB

There was something mesmerising about watching Solar Impulse come in to land, particularly at night.

Moving slowly but deliberately, its LEDs lighting the way - the plane did look very different to anything we would recognise at an airport.

Read full article Where next for solar-powered flight?

Tim Peake, Brexit and the UK space sector

Media captionTim Peake: Care will be needed when it comes to science

It was inevitable that Tim Peake would be asked about Brexit at the Farnborough International Air Show.

The visit - his first public engagement since returning from orbit - drew huge crowds, and everyone wanted to know what he had to say on the topic of space science and the industry that supports it.

Read full article Tim Peake, Brexit and the UK space sector

Funding flows for UK’s ‘revolutionary’ Sabre rocket engine

Two-stage launcher Image copyright ORBITAL ACCESS LIMITED
Image caption Artwork: Sabre-enabled test vehicles could perhaps one day power a two-stage launcher flying out of Prestwick

The £60m UK government investment in the "revolutionary" Sabre rocket engine concept has finally started to flow.

The company behind the power unit said at the Farnborough International Air Show that this would now enable it to push ahead with a new demonstrator.

Read full article Funding flows for UK’s ‘revolutionary’ Sabre rocket engine

Heady days for ocean surface mappers

Static map Image copyright CMEMS/EUMETSAT
Image caption The satellites pass over the warmer, higher (red) waters of the Gulf Stream on the same day

This is an unprecedented time for the study of the oceans.

Space agencies are now flying six satellite altimeters, returning large volumes of data on the height and shape of the sea surface - and in rapid time.

Read full article Heady days for ocean surface mappers

Europe races to meet Orion deadline

Orion ship Image copyright NASA
Image caption Artist's impression: The conical Orion capsule sits in front of its European service module

European industry has begun assembling the "back end" of the Orion crewship that is due to make an important 2018 demonstration flight around the Moon.

Orion is the next-generation vehicle that the US space agency (Nasa) will use to send astronauts beyond Earth, to destinations like asteroids and Mars.

Read full article Europe races to meet Orion deadline

Solar Impulse: A repaired plane and team

Media captionAndre Borschberg: "I felt the situation was very difficult and very emotional"

All big projects have their crunch moments, and these pinch points will very often define the people involved.

For the Solar Impulse team it came over the northern Pacific Ocean in mid-summer last year.

Read full article Solar Impulse: A repaired plane and team