The Bureau of Alcohol, Tobacco, Firearms and Explosives traced more than 211,000 guns back to their original point of purchase on behalf of law enforcement agencies in 2016. Of those, roughly 71 percent were originally sold in the state they were found, while the rest were from out of state. This interactive map shows the pattern of how guns move from state to state.

Expand chart

Note: Map shows only the top 10 out-of-state sources for traces run from each state; Data: Bureau of Alcohol Tobacco Firearms and Explosives; Chart: Chris Canipe

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Twitter launches warnings on election misinformation and delays

Photo: courtesy of Twitter

Twitter will start pinning notices to the top of all U.S. Twitter users’ timelines warning that results in next week’s election may be delayed and that they may encounter misinformation on mail-in voting.

Why it matters: Delayed election results are expected across many states that are handling unprecedented amounts of absentee and mailed ballots, which President Trump has baselessly called "very dangerous" and "corrupt."

Miriam Kramer, author of Space
35 mins ago - Science

NASA confirms water exists on sunny parts of the Moon

Photo: NASA/JPL/USGS

Water on the Moon might be more easily accessible than previously thought, opening up new possible avenues for future human exploration, according to a new study.

Why it matters: NASA is aiming to send people back to the Moon as part of its Artemis program by 2024, with plans to eventually create a sustainable presence on the lunar surface. That sustainability relies on mining the moon for its resources, like water.

Updated 1 hour ago - Politics & Policy

Pence no longer expected at Amy Coney Barrett's final confirmation vote

Photo: Ben Hasty/MediaNews Group/Reading Eagle via Getty Images

Vice President Mike Pence no longer plans to attend the Senate's final confirmation vote for Judge Amy Coney Barrett, a Pence aide confirmed to CNN and Politico on Monday. On Sunday, Senate Democrats claimed that his presence after possible exposure to the coronavirus would be a "violation of common decency."

Driving the news: Five of Pence's aides were recently diagnosed with COVID-19, including his chief of staff, who is currently quarantining. Pence has continued his campaign travel despite his possible exposure, which goes against CDC guidelines.