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CAPE CANAVERAL, Fla. — The biggest, most sophisticated Mars rover ever built is on its way to the red planet. NASA's Perseverance blasted off from Cape Canaveral, Florida, atop an Atlas V rocket Thursday morning. It's the first step in an ambitious project to bring the first Martian rock samples back to Earth to be analyzed for evidence of ancient life. The six-wheeled rover will drill down and collect tiny geological samples that will eventually be retrieved and brought home in about a decade. China and the United Arab Emirates also have spacecraft en route to Mars, after launching last week. They are all due to arrive at Mars in February. 656

Carnival Cruise Line is canceling most U.S. sailings through the end of this year.It's the latest sign that the cruise industry's recovery from the coronavirus pandemic could still be many months away.Carnival says it's canceling sailings from all ports except its home ports of Miami and Port Canaveral, Florida, but it stressed that it still might not sail from those ports in November and December.Carnival's announcement came the day after the U.S. Centers for Disease Control and Prevention extended a ban on large cruises in U.S. waters through Oct. 31.Carnival isn't the only cruise liner canceling trips because of COVID-19 - Royal Caribbean and Norwegian also announced they are canceling cruises.Norwegian Cruise Line Holdings, which operates the Norwegian Cruise Line, Oceania Cruises, and Regent Seven Seas Cruises, announced that it was suspending all its cruises through Nov. 30."The Company will continue to work in tandem with global government and public health authorities and its Healthy Sail Panel expert advisors to take all necessary measures to protect its guests, crew, and the communities visited," officials said in the release.On Tuesday, Royal Caribbean Group, owners of Royal Caribbean International, Azamara, Celebrity Cruises, and Silversea Cruises, said in a press release that they were extending their suspension through Nov. 30.However, they do plan to move forward with their Hong Kong cruises, which are scheduled for November, the company said in the release.Royal also added that Celebrity Cruises and Azamara had suspended their entire 2020/21 winter programs. Celebrity stopped all of its winter cruises in Australia and Asia. Azamara has also suspended its winter sailings in Australia and New Zealand, South Africa, and South America.The no-sail order, initially issued in March, was set to expire on Sept. 30. 1861

Carl Kasell, a fixture on NPR for more than 30 years on "Morning Edition" and later its quiz show "Wait Wait ... Don't Tell Me!," died Tuesday from complications from Alzheimer's disease. He was 84.Kasell began his career at NPR as a part-time employee on "All Things Considered" in the mid-1970s, then became the news announcer for the first broadcast of "Morning Edition" in 1979.In that role Kasell became one of public radio's most recognizable voices. Yet after years of being associated with breaking news, he had the opportunity to showcase a lighter side of himself starting in 1998 as judge and scorekeeper on "Wait Wait," hosted by Peter Sagal. An early prize for winners was to have Kasell record the outgoing message on their answering machine.In a statement, Sagal called him "the kindest, most decent person I have ever known," adding that after listening to him for years, "Hearing him say my name, that very first time, made me feel like I had somehow made it." Kasell became "scorekeeper emeritus" in 2014.Kasell's interest in radio began as a teenager, and that extended into his time at the University of North Carolina. He served in the military after college, returning to take a job at an all-news station. 1236

CAPE CANAVERAL, Fla. (AP) — The spacecraft team that brought us close-ups of Pluto will ring in the new year by exploring an even more distant and mysterious world.NASA's New Horizons spacecraft will zip past the scrawny, icy object nicknamed Ultima Thule (TOO-lee) soon after the stroke of midnight.One billion miles beyond Pluto and an astounding 4 billion miles from Earth (1.6 billion kilometers and 6.4 billion kilometers), Ultima Thule will be the farthest world ever explored by humankind. That's what makes this deep-freeze target so enticing; it's a preserved relic dating all the way back to our solar system's origin 4.5 billion years ago. No spacecraft has visited anything so primitive."What could be more exciting than that?" said project scientist Hal Weaver of Johns Hopkins University, part of the New Horizons team.Lead scientist Alan Stern of Southwest Research Institute in Boulder, Colorado, expects the New Year's encounter to be riskier and more difficult than the rendezvous with Pluto: The spacecraft is older, the target is smaller, the flyby is closer and the distance from us is greater.NEW HORIZONSNASA launched the spacecraft in 2006; it's about the size of a baby grand piano. It flew past Pluto in 2015, providing the first close-up views of the dwarf planet. With the wildly successful flyby behind them, mission planners won an extension from NASA and set their sights on a destination deep inside the Kuiper Belt. As distant as it is, Pluto is barely in the Kuiper Belt, the so-called Twilight Zone stretching beyond Neptune. Ultima Thule is in the Twilight Zone's heart.ULTIMA THULEThis Kuiper Belt object was discovered by the Hubble Space Telescope in 2014. Officially known as 2014 MU69, it got the nickname Ultima Thule in an online vote. In classic and medieval literature, Thule was the most distant, northernmost place beyond the known world. When New Horizons first glimpsed the rocky iceball in August it was just a dot. Good close-up pictures should be available the day after the flyby.ARE WE THERE YET?New Horizons will make its closest approach in the wee hours of Jan. 1 — 12:33 a.m. EST. The spacecraft will zoom within 2,200 miles (3,500 kilometers) of Ultima Thule, its seven science instruments going full blast. The coast should be clear: Scientists have yet to find any rings or moons around it that could batter the spacecraft. New Horizons hurtles through space at 31,500 mph (50,700 kph), and even something as minuscule as a grain of rice could demolish it. "There's some danger and some suspense," Stern said at a fall meeting of astronomers. It will take about 10 hours to get confirmation that the spacecraft completed — and survived — the encounter.POSSIBLY TWINSScientists speculate Ultima Thule could be two objects closely orbiting one another. If a solo act, it's likely 20 miles (32 kilometers) long at most. Envision a baked potato. "Cucumber, whatever. Pick your favorite vegetable," said astronomer Carey Lisse of Johns Hopkins. It could even be two bodies connected by a neck. If twins, each could be 9 miles to 12 miles (15 kilometers to 20 kilometers) in diameter.MAPPING MISSONScientists will map Ultima Thule every possible way. They anticipate impact craters, possibly also pits and sinkholes, but its surface also could prove to be smooth. As for color, Ultima Thule should be darker than coal, burned by eons of cosmic rays, with a reddish hue. Nothing is certain, though, including its orbit, so big that it takes almost 300 of our Earth years to circle the sun. Scientists say they know just enough about the orbit to intercept it.COMPARING FLYBYSNew Horizons will get considerably closer to Ultima Thule than it did to Pluto: 2,220 miles versus 7,770 miles (3,500 kilometers vs. 12,500 kilometers). At the same time, Ultima Thule is 100 times smaller than Pluto and therefore harder to track, making everything more challenging. It took 4 ? hours, each way, for flight controllers at Johns Hopkins' Applied Physics Lab in Laurel, Maryland, to get a message to or from New Horizons at Pluto. Compare that with more than six hours at Ultima Thule.WHAT'S NEXTIt will take almost two years for New Horizons to beam back all its data on Ultima Thule. A flyby of an even more distant world could be in the offing in the 2020s, if NASA approves another mission extension and the spacecraft remains healthy. At the very least, the nuclear-powered New Horizons will continue to observe objects from afar, as it pushes deeper into the Kuiper Belt. There are countless objects out there, waiting to be explored. 4591

Cal Ripken Jr. says he is cancer-free after surgery in March to remove a tumor from his prostate. On Thursday, the former All-Star revealed the news to reporters over a Zoom call. 187