Pumpkin QQ 68

Pumpkin QQ 68 Жизнь — это то, что случается, пока ты строишь другие планы

The Helsinki-based outfit has four operational satellites in orbit currently, and hopes to get another 6-8 up before the...
20/04/2023

The Helsinki-based outfit has four operational satellites in orbit currently, and hopes to get another 6-8 up before the end of the year. A network of 18 is its ambition.

Space radar has traditionally been the preserve of the military and big space agencies, principally because of the high costs associated with the technology.

But there is a paradigm shift under way thanks to the advent of cheap miniaturised electronics, innovations such as cloud computing, and easier access to more affordable rocket launches.

It's this flexure that provides the means to keep water in liquid form and could also drive the kind of volcanic vent sy...
17/04/2023

It's this flexure that provides the means to keep water in liquid form and could also drive the kind of volcanic vent systems on ocean floors that Prof Mundell mentions and which some scientists think could have been the origin of life on Earth.

"If I were a betting man, I'd probably put my money on Europa having life that is alive, that exists today," says Prof Lewis Dartnell, an astrobiologist at the University of Westminster. "The chances of that are much higher than finding extant (living) life on Mars today."

The map uses the so-called Aitoff projection, which unwraps the sphere of the sky on to an ellipse. The band across the ...
14/04/2023

The map uses the so-called Aitoff projection, which unwraps the sphere of the sky on to an ellipse. The band across the middle is the plane of our Milky Way Galaxy, with the centre of the galaxy in the middle of the ellipse.

The image has been encoded with colour to help describe what's going on. Blues represent higher energy X-rays (1-2.3 kiloelectron volts, keV); greens are mid-range (0.6-1 keV); and reds are lower energy (0.3-0.6 keV).

Much of the galaxy's plane is dominated by highly energetic sources. In part, that's because copious amounts of gas and dust have absorbed and filtered out the lower energy radiation. Sources include stars with strong, magnetically active and extremely hot atmospheres.

The Moon has been thought to have an effect on events - and moods - here on Earth for thousands of years.Ancient Babylon...
21/03/2023

The Moon has been thought to have an effect on events - and moods - here on Earth for thousands of years.

Ancient Babylonians recorded the phases of the Moon on clay tablets.

But it wasn't until Isaac Newton identified gravity in the 18th Century that we began to understand its effect on tides.

In 1959 a Russian probe took the first photographs of the Moon's hidden face, and it was first seen by the naked eye almost ten years later when American astronauts flew past.

But as we look further at the data, we see something else - there appear to be tiny jolts, every half hour or so, about ...
20/03/2023

But as we look further at the data, we see something else - there appear to be tiny jolts, every half hour or so, about a millionth of 1g. That's still one thousand times the noise from the sensors.

The jolts are seen at the same time on both SP2 and SP3, so are unlikely to be from the sensors themselves. That is certainly a relief. Could they be dust impacts?

We double check - the jolts are far too large, even if we were going right through a comet's tail. We're starting to think it must be the spacecraft itself.

The American space agency Nasa says its InSight Mars lander is on a near-perfect Thanksgiving trajectory.The probe is du...
16/03/2023

The American space agency Nasa says its InSight Mars lander is on a near-perfect Thanksgiving trajectory.

The probe is due to touch down on Monday at 19:53 GMT, to begin its quest to map the Red Planet's interior.

Engineers can take the opportunity for one last course correction on Sunday to tighten the line to the bulls-eye - but they may not bother with it.

"Right now we're looking really good, and we might be able to skip it," said Nasa's Tom Hoffman.

Dr Hainaut works for the European Southern Observatory (ESO) organisation which operates world-class facilities in Chile...
10/03/2023

Dr Hainaut works for the European Southern Observatory (ESO) organisation which operates world-class facilities in Chile's Atacama Desert, including the VLT (Very Large Telescope) and the forthcoming Extremely Large Telescope (ELT).

Neither is likely to be deeply troubled by the wave of new broadband satellites being launched by companies such as SpaceX of California and London-based OneWeb.

"We will lose some telescope time due to the satellites crossing the field of view. For us, for ESO telescopes, this is something that we can mitigate by scheduling, and by 'closing the shutter' when they pass overhead," Dr Hainaut told BBC News.

"It has a cost, of course; we would need to develop the software to compute the positions of the satellites, etc. That's not horribly complicated, but it will need to be done."

The event was captured by the US space agency Nasa's Spitzer infrared telescope - a fortunate observation, as it turned ...
07/03/2023

The event was captured by the US space agency Nasa's Spitzer infrared telescope - a fortunate observation, as it turned out, because OJ 287 was on the far side of the Sun to the Earth at the time and therefore out of sight to ground-based facilities.

Spitzer's separation from Earth (160 million km), on the other hand, put it in prime position.

"When I first checked the visibility of OJ 287, I was shocked to find that it became visible to Spitzer right on the day when the next flare was predicted to occur," said Dr Seppo Laine, a Caltech, US, staff scientist who oversaw the Spitzer viewing.

"It was extremely fortunate that we would be able to capture the peak of this flare with Spitzer, because no other human-made instruments were capable of achieving this feat at that specific point in time."

Ariel is an acronym for Atmospheric Remote-Sensing Infrared Exoplanet Large-survey.The telescope was selected for develo...
01/03/2023

Ariel is an acronym for Atmospheric Remote-Sensing Infrared Exoplanet Large-survey.

The telescope was selected for development by European Space Agency member states in 2018, since when the project has been undergoing various feasibility studies.

The new contract enables Airbus and its 60 industrial partners to push forward the design and to finalise the necessary technologies.

Ariel will monitor each target planet as it moves in front of its host star, observing how the starlight changes as a result of having to pass through the transiting world's atmosphere to reach the telescope.

River director Dr Lorraine Hawkins stressed the water scooter itself was not the deterrent."It's simply the means of us ...
21/02/2023

River director Dr Lorraine Hawkins stressed the water scooter itself was not the deterrent.

"It's simply the means of us getting the deterrent out towards the seal," she said.

"We've developed this method in consultation with the seal mammal research unit. They're the seal experts and they advise us on how we go about this, so we're confident there's no harm caused to the seal."

The project is being piloted on the Dee until April.

The footprint is the largest left by a theropod - a group of bipedal dinosaurs which also included Tyrannosaurus Rex - f...
16/02/2023

The footprint is the largest left by a theropod - a group of bipedal dinosaurs which also included Tyrannosaurus Rex - found to date in Yorkshire.

Dr Dean Lomax, a palaeontologist at the University of Manchester, said the "wonderful" discovery had shed new light on the behaviour of the carnivorous giants which once roamed the region's coast.

He added: "Features of the footprint may even suggest that this large predator was squatting down before standing up. It's fun to think this dinosaur might well have been strolling along a muddy coastal plain one lazy Sunday afternoon in the Jurassic."

This is a structure created from the silt and sand dumped by a river as it slows on entry into a wider body of water.It'...
15/02/2023

This is a structure created from the silt and sand dumped by a river as it slows on entry into a wider body of water.

It's the kind of feature that might just have trapped evidence of past microbial organisms.

Perseverance has drilled a mix of volcanic and sedimentary rocks that should tell the story of the crater and the lake it once held. Examples of those rocks are now in the depot on a flat piece of terrain dubbed "Three Forks".

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