Marsquakes reveal the Red Planet boasts a liquid core half its diameter

Mars has had its first CT scan, thanks to analyses of seismic waves picked up by NASA’s InSight lander. Diagnosis: The Red Planet’s core is at least partially liquid, as some previous studies had suggested, and is somewhat larger than expected.

InSight reached Mars in late 2018 and soon afterward detected the first known marsquake (SN: 11/26/18; SN: 4/23/19). Since then, the lander’s instruments have picked up more than a thousand temblors, most of them minor rumbles. Many of those quakes originated at a seismically active region more than 1,000 kilometers away from the lander. A small fraction of the quakes had magnitudes ranging from 3.0 to 4.0, and

→ Continue reading at Science News

More from author

Related posts

Advertisment

Latest posts

Deliveroo could leave Spanish market ahead of on-demand labor reclassification

Deliveroo announced today that it is considering leaving the Spanish market, citing limited market share and a long road of investment with “highly uncertain...

For tech firms, the risk of not preparing for leadership changes is huge

Jason Dressel Contributor Jason Dressel is president of History Factory, which helps companies use their history and...

5 Reasons Why Employees Prefer Self-Employment, and Why You Should Use This to Your Advantage

Find employees that care about your business as if it was their own. Free Book Preview: Unstoppable Get a glimpse...