Titan as seen by Cassini. Photo: NASA/JPL-Caltech/University of Arizona/University of Idaho

Saturn's moon Titan is eerily familiar and yet wholly unlike our own.

The cosmic picture: The large moon boasts a hazy atmosphere and rains methane onto its surface. Now, thanks to the long-dead Cassini spacecraft, we know that some of its lakes are more than 300 feet deep.

Background: Cassini gathered groundbreaking data on Saturn and its moons, including making a dive through the planet's rings and into its atmosphere in the final moments of its mission.

  • The spacecraft flew past Titan in April 2017, when it observed the lakes, and scientists are still analyzing the treasure-trove of data it gathered and transmitted back to Earth.

What they're saying: "Every time we make discoveries on Titan, Titan becomes more and more mysterious," Marco Mastrogiuseppe, lead author of the new Titan study, said in a statement.

Go deeper

Ina Fried, author of Login
21 mins ago - Technology

Amazon wants to flood America with Alexa cameras and microphones

Photo: Amazon

In a Thursday event unveiling a slew of new home devices ahead of the holidays, Amazon made clearer than ever its determination to flood America with cameras, microphones and the voice of Alexa, its AI assistant.

The big picture: Updating popular products and expanding its range to car alarms and in-home drones, Amazon extended its lead in smart home devices and moved into new areas including cloud gaming and car security. The new offerings will also fuel criticism that the tech giant is helping equip a society built around surveillance.

Ben Geman, author of Generate
1 hour ago - Energy & Environment

Oil's turbulent long-term future

Illustration: Aïda Amer/Axios

The oil sector is facing risks from all sides.

Why it matters: Risk in the industry is nothing new. But these are especially turbulent and uncertain times. The industry's market clout has waned, the future of demand is kind of a mystery, and future U.S. policy is too, just to name three.

Meadows on Wray's voter fraud dismissal: "He has a hard time finding emails in his own FBI"

White House chief of staff Mark Meadows dismissed FBI Director Chris Wray's testimony that the U.S. has never historically seen evidence of widespread voter fraud, including by mail, during an appearance on "CBS This Morning" on Friday.

Why it matters: Meadows' statement highlights the Trump administration's strategy to sow doubt in November's election results by challenging the legitimacy of mail-in ballots, which are expected to skew heavily in Democrats' favor.

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