Your daily look at late-breaking news, upcoming events and the stories that will be talked about Tuesday:
1. WHY IOWA ELECTION RESULTS SAY ONLY SO MUCH
Iowa launches the presidential nominating contest, but candidates also face an electorate that's whiter, more rural and more evangelical than many other states.
2. ZIKA VIRUS CALLED GLOBAL EMERGENCY
The World Health Organization labels the disease's spread in the Americas an "extraordinary event" that poses a health threat to other parts of the world.
3. WHICH COMPANY HAS TOPPLED APPLE AS WORLD'S MOST VALUABLE
The market value of Alphabet, Google's new parent, now stands at $555 billion — eclipsing Apple's $533 billion.
4. UN ENVOY DECLARES 'OFFICIAL BEGINNING' TO SYRIA PEACE TALKS
There's immediate acrimony as the opposition spokesman accuses Russia of producing a "new Hitler" in Moscow and supporting another Hitler in Damascus.
5. CHICAGO HOMICIDES UP SHARPLY
Homicides and shootings spike in January — the bloodiest start to a year in the city in at least 16 years.
6. BRITAIN APPROVES EXPERIMENTS ON HUMAN EMBRYOS
Some ethicists warn that the landmark decision involving gene-editing is a step down the path toward "designer babies."
7. WINTER STORM TAKES AIM AT COLORADO
Between 3 to 4 feet of snow is possible in the state's southwestern mountains from the weather system moving out of the Pacific.
8. SMITHSONIAN OPENING AFRICAN-AMERICAN HISTORY MUSEUM
The museum's exhibits will trace the history of slavery, segregation, civil rights and African-Americans' achievements.
9. WHO'S REKINDLING 'LOVE STORY' AFTER 45 YEARS
Actors Ali MacGraw and Ryan O'Neal return to Harvard and reminisce about the film that turned them into household names.
10. SUPER BOWL CIRCUS KNOWN AS MEDIA DAY HITS PRIME TIME
The NFL moves the supersized press conference to Monday night from its usual Tuesday daytime slot to give more fans a chance to watch live on cable.