Happy Monday listeners. Let's kick off the week by catching up on the latest science news.

For Scientific Americans, Science Quickly, I'm Rachel Feldman.

Last week, NASA's perseverance rover started a slow but steady slog.

The bot landed in Jeziro Crater when it first arrived on Mars back in February 2021.

Now it's busting out, but very slowly and cautiously.

NASA says it'll take perseverance months to ascend the rough terrain of the crater's

western rim. The hope is that perseverance will persevere, sorry, long enough to

study a couple sites at the top of the crater.

Speaking of Mars, the red planet has kind of been popping off lately.

Earlier this month, a study suggested that Mars might be hiding an ocean's worth of water

deep below its surface. Data from NASA's late Insight Lander

revealed seismic signals of liquid water some 6 to 12 miles beneath the planet's

crust. Then just a couple weeks ago a study showed that rock samples taken by perseverance contained sulfites.

That indicates that they probably used to sit in salty water.

And back in May, NASA's tried and true Curiosity rover drove over and cracked open a rock that turned out to be packed with pure sulfur.

Scientists can't actually explain how sulfur would have formed in that area, which means there must be something

about its past that they don't know yet.

Now let's get into some health news.

Last Monday, a study in nature medicine described an implant that acts like a pacemaker for the brain.

The device builds on the idea of using deep brain stimulation to treat Parkinson's,

and that generally works by delivering a constant electrical current.

Instead, this new treatment uses algorithms to track symptoms and it delivers brain stimulation only as needed.

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