Posted by Cassini eyes Saturn moon for life on Tue, 18 Apr 2017 11:53 | #

Cassini spacecraft determines the possibility for Saturn’s moon, Enceladus, to sustain life.

Posted by Mars Rover unveiled on Mon, 12 Jun 2017 09:44 | #

Yahoo News, “Nasa unveils six-wheeled Mars rover complete with full laboratory and life support systems”, June 2017:

The Parker Brothers concept of a new Nasa Mars Rover: Nasa

Nasa has unveiled a new Mars rover concept vehicle designed to function “as both a working vehicle and laboratory” for the next generation of space explorers.

The 8.5-metre vehicle would not look out of place in a science-fiction film. It features six huge wheels to allow it to travel over craters, dunes and rocks, a sloping front reminiscent of the Nolan-era Batmobile and solar panels to power everything.

“It features life support systems, navigation and communication systems, and design and materials that relate to conditions and resources on Mars,” Nasa said.

Created by Parker Brothers Concepts, the rover — which looks nothing like the actual vehicles that have trundled over Mars’ surface, 34 million miles away — will promote Nasa’s “summer of Mars” to teach young people about its efforts to land humans on Earth’s neighbouring world.

The concept vehicle will never cruise the dunes of Mars but Nasa believes “one or more of its elements could make its way into a rover astronauts will drive on the red planet”.

The space agency’s next robotic rover is due to touch down in 2020, to “search for signs of past microbial life and collect core samples for a potentially future return to Earth”.

Posted by More earthlike planets being discovered on Thu, 16 Nov 2017 17:55 | #

Vice, “Scientists found another Earth-like planet, and even more are coming”, 15 Nov 2017:

By Alex Lubben Nov 15, 2017

A planet about a third bigger than Earth that could support life as we know it was found just 11 light years away, researchers announced on Wednesday. More than a dozen potentially habitable planets have been identified so far in 2017, and scientists are just getting started.

“This has always been a booming field,” Debra Fischer, an astronomer with the Yale Exoplanet Laboratory, told VICE News. “You’re right now standing on the threshold of the next sonic boom in exoplanet discoveries.”

The discovery of the new planet, dubbed Ross 128 b, tightly orbits a “quiet” red dwarf star, much like Earth’s sun. Its year, however, is 9.9 days long, meaning it’s closer to the star and receives 40 percent more light from it. That also mean it’s probably a lot hotter than Earth.

Ross 128 b’s discovery follows evidence in 2016 of another potentially habitable planet orbiting the closest star to Earth other than the sun, Proxima Centauri, just 4 light years from Earth. And with new technology just on the horizon, these discoveries could become even more frequent.

Today, planets in tight orbits around red dwarf stars are pretty easy to detect with the instruments currently in use — the same ones scientists have used for the last 15 years. What’s changed recently is that we now know that way more stars have planets than previously thought, largely through the discoveries of NASA’s Kepler mission. In 2015, scientists estimated that there could be as many as 1 billion Earth-like planets in our galaxy alone.

In the next couple of years, new technology will allow us to discover even more “Earths.” For example, European scientists plan to bring “Espresso” — a telescope in the very-scientifically-named category of “Very Large Telescope” — online in late 2017.

And in the U.S., Fischer’s team will bring online another device called EXPRES, an acronym for Extreme Precision Spectrograph, before the end of the year, too.

“The goal of these instruments is to have precision that’s 10 times better than the precision we have today,” Fischer said. “If you look at these discoveries, there were hundreds of observations that were collected to be able to find these planets.”

With the new instruments, “we expect to find the planets faster, with fewer observations,” she added.

READ: NASA’s Cassini mission crashed and burned — and was a huge success

Detecting these stars is one thing though. Figuring out whether they’re habitable is another.

The new planet could be more habitable that the one discovered last year, which orbits a temperamental star, whose constant flares would be a concern. Ross 128 b, however, orbits “the quietest star in its neighborhood,” said Xavier Bonfils, an astronomer at the Institute of Planetary Science and Astrophysics of Grenoble and one of the scientists who discovered it.

But life there could be pretty uncomfortable, at least for humans.

“We don’t know if it has an atmosphere or what it could be made of, but, knowing what we know, our climate models would suggest that this planet would get unbearably hot,” Anthony Del Genio, a co-head of the Nexus for Exoplanet System Science with NASA, told VICE News.

It’s still too early to tell whether Ross 128 b could host life. If it can, life there might look very different from life on Earth. And even if this planet is just a small ball of hot rock, scientists are hopeful that we’ll discover life on another planet with the next few decades.

“For anyone who thinks there isn’t life in our galaxy, it’s getting harder and harder to make that argument. Life might be much more common than we imagine now,” Fischer said.

“I sort of picture this day, ten, twenty, or thirty years from now when we discover life elsewhere. How will humanity deal with that? I don’t know!” she added.

Posted by Jupiter on Thu, 08 Nov 2018 21:46 | #

NASA’s Juno Mission
‏Verified account @NASAJuno
10m10 minutes ago

Jovian close encounter. A multitude of magnificent, swirling clouds in #Jupiter’s dynamic North North Temperate Belt is captured in this color-enhanced image: https://www.missionjuno.swri.edu/news/jovian_close_encounter …

Posted by Close pass by asteroid on Tue, 22 Sep 2020 14:28 | #

Asteroid tracker: Earth’s gravity to impact 33-foot space rock’s path through space - NASA.

Express U.K. 22 Sept 2020

ASTEROID enthusiasts have announced a rogue space rock is about to zip safely past Earth this Thursday.

Asteroid 2020 SW will barrel past Earth at a distance closer than some satellites, astronomers have announced. Although the asteroid will not impact the planet, its trajectory will actually be tweaked by its encounter with Earth’s gravity.

Asteroid trackers at US space agency NASA have revealed how a tiny asteroid will make an extraordinarily close encounter with our world.

At 0.00019 Astronomical Units (AU), the equivalent to 17,556 miles, the asteroid will be far closer than the average distance to the Moon.

Some may think this is actually a vast distance.

But to put this into context, the majority of satellites orbit the planet at only 22,300 miles (35,888km).

This asteroid’s approach is actually so close the gravitational pull of our planet will affect the space rock’s path.

NASA’s NEO Earth Close Approach site added some other surprising statistics about the asteroid.

The cosmic debris is estimated to be up to 33ft (10m) in diameter.

And the asteroid is also estimate to be hurtling through space at 5.62km/s (12,571mph).