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    Evacuations ordered after freight train derails in Chicago suburb

    01:11
  • Murder charge filed after deaths at unlicensed Texas assisted living homes

    01:58
  • Minnesota candidate accused of assault with a live tarantula

    02:07
  • Study finds link between parents with high device usage and children with screen time

    03:34
  • 'It kind of all went at once': Sinkhole swallows Illinois soccer field

    01:31
  • Oct. 2023: West Virginia couple arrested after children found locked inside barn

    01:50
  • Vermont man receives $175K settlement after arrest over giving officer the middle finger

    01:36
  • Watch: Sinkhole swallows huge part of soccer field in Illinois

    00:58
  • Two Venezuelan migrants charged with murder of 12-year-old girl

    03:04
  • CEOs of OpenAI and Airbnb discuss A.I.'s potential and challenges

    03:38
  • Illinois murder suspect abruptly rejects plea deal

    01:29
  • Rare birth of white bison celebrated by indigenous tribes

    02:01
  • Draft of Supreme Court abortion ruling appears on court's website

    02:38
  • Catastrophic floods wash away homes and memories in Upper Midwest

    01:20
  • Candidates make final preparations for first presidential debate

    02:20
  • New Jersey mother accused of murdering her children appears in court

    01:08
  • Entire Hells Angels chapter arrested in kidnapping and assault probe

    03:09
  • New Jersey mother is accused of drowning her toddlers

    00:55
  • New CDC data shows up to 39 states are seeing a rise in Covid cases

    03:46
  • Watch: Rep. Lauren Boebert addresses supporters after GOP primary win

    01:13

Harvard professor discusses research claiming aliens may live on earth

07:38

A paper by Harvard social science researchers is claiming that aliens may already be living on earth. NBC News' Gadi Schwartz talks to Avi Loeb, Professor of Science at Harvard University, about the claims.