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NASA's InSight lander's seismometer on Mars. Photo: NASA/JPL-Caltech

On April 6, NASA's InSight lander measured its first quake on Mars, a significant milestone for the spacecraft.

Why it matters: InSight was sent to Mars specifically to measure seismic activity on the Red Planet. The "Marsquake" it felt earlier this month was small, but it marks the lander's first likely detection of a quake. NASA hopes to use seismic data collected by InSight to map Mars' interior, potentially helping scientists understand how the world formed.

"We've been collecting background noise up until now, but this first event officially kicks off a new field: Martian seismology," InSight Principal Investigator Bruce Banerdt said in a statement.

Background: InSight landed on Mars in November 2018 after launching to space in May 2018. The spacecraft deployed its seismometer in December 2018, and since then, it has been keeping an ear to the ground for quakes.

  • NASA said that InSight had detected three other possible quakes, but they were even fainter than the one recorded on April 6, so their origins remain a mystery.

Go deeper:

Go deeper

Erica Pandey, author of @Work
1 hour ago - World

Remote work shakes up geopolitics

Illustration: Eniola Odetunde/Axios

The global adoption of remote work may leave the rising powers in the East behind.

The big picture: Despite India's and China's economic might, these countries have far fewer remote jobs than the U.S. or Europe. That's affecting the emerging economies' resilience amid the pandemic.

Trump gives Biden access to presidential intelligence briefings

Photo: Mark Makela/Getty Images

The Trump White House on Tuesday gave President-elect Biden access to daily presidential intelligence briefings, a source familiar with the matter tells Axios.

Why it matters: Trump has refused to share the briefs until now, as he continues to challenge the result of the election and declines to concede. The president's acquiescence comes as another sign that the transition to a Biden administration is taking place.

AOC and Ilhan Omar want to block Biden’s former chief of staff

Reps. Ilhan Omar and Alexandria Ocasio-Cortez. Photo: Brendan Smialowski/Getty Images

Reps. Alexandria Ocasio-Cortez and Ilhan Omar are boosting a petition against Joe Biden nominating his former chief of staff to a new role in his administration, calling Bruce Reed a "deficit hawk” and criticizing his past support for Social Security and Medicare cuts.

Why it matters: Progressives are mounting their pressure campaign after the president-elect did not include any of their favored candidates in his first slate of Cabinet nominees, and they are serious about installing some of their allies, blocking anyone who doesn't pass their smell test — and making noise if they are not heard.

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