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North-By-Northwest for Ingenuity’s 11th Flight

We’re heading northwest for the 11th flight of NASA’s Ingenuity Mars Helicopter, which will happen no earlier than Wednesday night, Aug. 4. The mission profile is designed to stay ahead of the rover – supporting its future science goals in the “South Séítah” region, where it will be able to gather aerial imagery in support of future Perseverance Mars rover surface operations in the area.

Here is how we plan to do it: On whatever day the flight takes place, we will start at 12:30 p.m. local Mars time (on Aug. 4, this would be 9:47 p.m. PDT/Aug. 5, 12:47 a.m. EDT). Ingenuity wakes up from its slumber and begins a pre-programmed series of preflight checks. Three minutes later, we’re off – literally – climbing to a height of 39 feet (12 meters), then heading downrange at a speed of 11 mph (5 meters per second).

And while Flight 11 is primarily intended as a transfer flight – moving the helicopter from one place to the other — we’re not letting the opportunity go to waste to take a few images along the way. Ingenuity’s color camera will take multiple photos en route, and then at the end of the flight, near our new airfield, we’ll take two images to make a 3D stereo pair. Flight 11 – from takeoff to landing –- should take about 130 seconds.

Nighttime weather on Venus revealed for the 1st time

What’s the weather like at night on Venus? Scientists are finally finding out.

Just one planet away, Venus is relatively close to Earth and we have been studying it for a long time, with the first Venusian probe reaching the planet in 1978. However, scientists have known very little about what the weather is like at night on Venus. That is, until now.

The Next War: How The U.S. Armed Forces Are Evolving | Meet The Press

As the United States looks beyond war in Afghanistan and Iraq, the military is preparing for conflict in new domains, from outer space to cyberspace.
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Scientists Find A Better Way To Turn Heat Into Electricity

Engineers usually regard heat as “waste energy” since it is hard to efficiently turn into anything useful. However, a new class of thermoelectric materials could change that after researchers opted to try the exact opposite of the usual approach. A paper in Science Advances explains why, speeding the search for even better versions.

As the name suggests, thermoelectric materials turn heat into electricity, skipping the boiling water stage used in most bulk electricity production. However, cost and inefficiency have kept thermoelectric generators restricted to niche applications, such as powering spacecraft like the Mars Perseverance rover where lightweight, reliable energy production matters more than price.

Thermoelectric materials are too expensive and polluting for more widespread use, but new versions that replace heavier elements with magnesium could change that, opening the door to even better options that could find widespread uses.

Galactic siblings fight in vivid NASA Hubble image

The image shows an elongated galaxy sandwiched, and stretched, between two galaxies. A long tail is visible in the galaxy on the right in this image: Called a “tidal tail,” this can occur when stars and gases are “stripped” from the outside arms of galaxies during a merger, according to Cosmos.

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The Hubble Space Telescope — the size of a large school bus — is over 30 years old. The solar-powered telescope takes detailed images of far-off cosmic objects, like Arp 195, yet the legendary instrument is wearing down with age, most recently exemplified by a computer problem that sent Hubble offline for weeks. Still, NASA expects “Hubble will last for many more years and will continue making groundbreaking observations, working in tandem with other space observatories including the James Webb Space Telescope to further our knowledge of the cosmos.”

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