قالب وردپرس درنا توس
Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ NASA's Curiosity rover spots and bed of Earth-like pebbles – BGR

NASA's Curiosity rover spots and bed of Earth-like pebbles – BGR



Most of the views of Mars we've seen come from NASA's trusty rovers, and while they've shown us some pretty stunning stuff, you can almost always immediately tell that you're looking at a photo of Mars when you see one. The sky is almost always a hazy orange, and the landscape looks windswept and lacking recognizable features.

One of the latest images sent back by Curiosity rover does away with showing us a bed of pebbles that look like they could

"NASA's Mars rover Curiosity acquired this image using its Mars Hand Lens Imager (MAHLI), located on the turret at the end of the rover's robotic arm," NASA explains. The image was captured on March 24th

There are some interesting things to note about this photo. First, the tiny rocks are a pale off-white rather than a bold rusty orange like many other images we see of the planet's surface. Mars' terrain has a lot of variation in terms of color and we rarely get a chance to see that up-close like we can here

Secondly you'll notice a smaller gray ball mixed with the oblong pinkish pebbles. In the past, the strange, perfectly spherical shapes have led some to question whether we might be seeing the remains of an ancient civilization ̵

1; perhaps even projectiles used in ancient conflicts.

NASA assures us that this is not the case, and these "blueberries" as they are sometimes called are the result of a natural phenomenon called concretion. It's what happens when minerals begin to collect in water-soaked rocks, eventually hardening. When the softer outer part of the rock erodes due to wind or other natural processes, the harder spheres inside break free and erode at a much slow rate

It is a very cool image and it serves as a great reminder that despite being separated

Image Source: NASA / JPL-Caltech / MSSS


Source link