Day: December 23, 2024

NASA’s Parker Solar Probe aims to fly closer to the sun like never before

NEW YORK — A NASA spacecraft aims to fly closer to the sun than any object sent before.

The Parker Solar Probe was launched in 2018 to get a close-up look at the sun. Since then, it has flown straight through the sun’s corona: the outer atmosphere visible during a total solar eclipse.

The next milestone: closest approach to the sun. Plans call for Parker on Tuesday to hurtle through the sizzling solar atmosphere and pass within a record-breaking 6 million kilometers of the sun’s surface.

At that moment, if the sun and Earth were at opposite ends of a football field, Parker “would be on the 4-yard line,” said NASA’s Joe Westlake.

Mission managers won’t know how Parker fared until days after the flyby since the spacecraft will be out of communication range.

Parker planned to get more than seven times closer to the sun than previous spacecraft, hitting 690,000 kph at closest approach. It’s the fastest spacecraft ever built and is outfitted with a heat shield that can withstand scorching temperatures up to 1,371 degrees Celsius.

It’ll continue circling the sun at this distance until at least September. Scientists hope to better understand why the corona is hundreds of times hotter than the sun’s surface and what drives the solar wind, the supersonic stream of charged particles constantly blasting away from the sun.

The sun’s warming rays make life possible on Earth. But severe solar storms can temporarily scramble radio communications and disrupt power.

The sun is currently at the maximum phase of its 11-year cycle, triggering colorful auroras in unexpected places.

“It both is our closest, friendliest neighbor,” Westlake said, “but also at times is a little angry.”

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In a calendar rarity, Hanukkah starts this year on Christmas Day

Hanukkah, Judaism’s eight-day Festival of Lights, begins this year on Christmas Day, which has only happened four times since 1900.

For some rabbis, the intersection of the two religious holidays provides an auspicious occasion for interfaith engagement.

“This can be a profound opportunity for learning and collaboration and togetherness,” said Rabbi Josh Stanton, a vice president of the Jewish Federations of North America. He oversees interfaith initiatives involving the 146 local and regional Jewish federations that his organization represents.

“The goal is not proselytizing; it’s learning deeply from each other,” he said. “It’s others seeing you as you see yourself.”

One example of togetherness: a Chicanukah party hosted Thursday evening by several Jewish organizations in Houston, bringing together members of the city’s Latino and Jewish communities for a “cross cultural holiday celebration.” The venue: Houston’s Holocaust museum.

The food on offer was a blend of the two cultures — for example a latke bar featuring guacamole, chili con queso and pico de gallo, as well as applesauce and sour cream. The doughnut-like pastries were sufganiyot — a Hanukkah specialty — and buñuelos, And the mariachi band took a crack at playing the Jewish folk song “Hava Nagila.”

“What really brings us together is our shared values — our faith, our families, our heritage,” said Erica Winsor, public affairs officer for the Jewish Federation of Greater Houston.

Rabbi Peter Tarlow, executive director of the Houston-based Center for Latino-Jewish Relations, said the first Chicanukah event 12 years ago drew 20 people, while this year the crowd numbered about 300, and could have been larger had not attendance been capped. He said the partygoers were a roughly even mix of Latinos — some of them Jews with Latin American origins — and “Anglo” Jews.

“There’s too much hate, too much separation against both Jews and Latinos,” Tarlow said. “This is a way we can come together and show we support each other.”

While Hanukkah is intended as an upbeat, celebratory holiday, rabbis note that it’s taking place this year amid continuing conflicts involving Israeli forces in the Middle East, and apprehension over widespread incidents of antisemitism.

Rabbi Moshe Hauer, executive vice president of the Orthodox Union, acknowledged that many Jews may be feeling anxious heading into Hanukkah this year. But he voiced confidence that most would maintain the key tradition: the lighting of candles on menorah candelabras and displaying where they’re visible through household windows and in public spaces.

“The posture of our community — without stridency, just with determination — is that the menorah should be in our windows, in a place where the public sees it,” Hauer said.

“It is less for us, the Jewish community, than for the world,” he added. “We have to share that light. Putting the menorah in the window is our expression of working to be a light among the nations.”

Hauer concurred with Stanton that this year’s overlap of Hanukkah and Christmas is “an exceptional opportunity to see and experience the diversity of America and the diversity of its communities of faith.”

Rabbi Motti Seligson, public relations director for the Hasidic movement Chabad-Lubavitch, noted that this year marks the 50th anniversary of a milestone in the public lightings of menorahs. It was on Dec. 8, 1974 — as part of an initiative launched by the Lubavitcher leader, Rabbi Menachem M. Schneerson — that a menorah was lit outside Philadelphia’s Independence Hall, where the Liberty Bell was housed at the time.

“Hanukkah is a celebration of religious liberty, so that it’s not taken for granted,” Seligson said. “One of the ways of doing that is by celebrating it publicly.”

He said Chabad was organizing about 15,000 public menorah lightings this year through its numerous branches around the world.

“There certainly is some apprehension,” Seligson said, referring to concerns about antisemitism and political friction. “Some people question whether Jews will be celebrating as openly as in the past.”

“What I’m hearing is there’s no way that we can’t,” he added. “The only way through these difficult times is by standing stronger and prouder and shining brighter than ever.”

Stanton concurred.

“Through our history, we’ve been through moments that are easy and moments that are hard,” he said. “Safety for us does not come from hiding. It comes from reaching out.”

Why is Hanukkah so late this year? The simple answer is that the Jewish calendar is based on lunar cycles and is not in sync with the Gregorian calendar, which sets Christmas on Dec. 25. Hanukkah always begins on the 25th day of the Jewish month of Kislev, a date which occurs between late November and late December on the Gregorian calendar.

The last time Hanukkah began on Christmas Day was in 2005. But the term “Chrismukkah” — signifying the overlap of the two holidays — had become a popular term before then. The term gained extra currency in 2003, when the character Seth Cohen on the TV drama “The O.C.” embraced the fusion holiday as a tribute to his Jewish father and Protestant mother.

This season, the Hallmark Channel introduced a new Christmas movie called “Leah’s Perfect Gift,” depicting a young Jewish woman who had admired Christmas from a distance and gets a chance to experience it up close when her boyfriend invites her to spend the holidays with his family. Spoiler alert: All does not go smoothly.

Despite such storylines suggesting a fascination with Christmas among some Jews, Stanton says research by the Jewish Federations reveals a surge in Jews seeking deeper connections to their own traditions and community, as well as a surge in Jews volunteering for charitable activities during the holidays.

“The opportunity is to share with others how we celebrate Hanukkah,” he said. “It’s a holiday of freedom, hope, showing proudly you are Jewish.”

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