Jill Biden Shares Memories of Sept. 11 as Wife, Sister, More

Jill Biden, left, wife of Democratic presidential candidate and former Vice President Joe Biden, right, arrives at the National September 11 Memorial and Museum on Sept. 11, 2020, in New York. (AP)
Jill Biden, left, wife of Democratic presidential candidate and former Vice President Joe Biden, right, arrives at the National September 11 Memorial and Museum on Sept. 11, 2020, in New York. (AP)
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Jill Biden Shares Memories of Sept. 11 as Wife, Sister, More

Jill Biden, left, wife of Democratic presidential candidate and former Vice President Joe Biden, right, arrives at the National September 11 Memorial and Museum on Sept. 11, 2020, in New York. (AP)
Jill Biden, left, wife of Democratic presidential candidate and former Vice President Joe Biden, right, arrives at the National September 11 Memorial and Museum on Sept. 11, 2020, in New York. (AP)

When Jill Biden realized that terrorists had attacked America on Sept. 11, 2001, her husband, Joe, wasn't the only loved one whose safety she worried about.

Biden recalled being “scared to death” that her sister Bonny Jacobs, a United Airlines flight attendant, was on one of the four hijacked airplanes that were flown into New York's World Trade Center, the Pentagon and a Pennsylvania field, killing nearly 3,000 people.

After learning that her sister was safe at her Pennsylvania home, “I went straight to Bonny's house,” Biden told The Associated Press on Saturday as she and her sister remembered that day.

On Sunday, Jill Biden, now the first lady, will mark the 21st anniversary of the 9/11 attacks by delivering remarks at the Flight 93 National Memorial in Shanksville, Pennsylvania — accompanied by Jacobs.

The 40 passengers and crew aboard that United Airlines flight fought back against their hijackers, thwarting a feared attack on the US Capitol in Washington.

“I called Bonny to see where she was because I was scared to death ... I didn’t know where she was, whether she was flying, not flying, where she was,” Jill Biden recalled. “And then I found out she was home.”

Biden had gone to teach her class at Delaware Technical Community College, then went straight to her sister's house after school was dismissed.

Joe Biden, then a US senator, was on an Amtrak train barreling toward Washington when his wife got through to him. They were on the phone when she cried out, “Oh, my God, oh, my God, oh, my God” after an airplane hit the second World Trade Center tower.

Jacobs said she had gotten home around 2 a.m. on Sept. 11 after a late flight. She slept a little, got up to help get her kids, then 11 and 7, off to school, turned off her phone and went back to bed.

“So, when I got up around noon, it was such a gorgeous day,” she said. “I had my coffee. I sat outside. I literally said out loud, ‘I’m doing nothing today, this day is gorgeous.’”

She saw the phone beeping when she went inside. Jill had left a message asking if she'd been watching television. She turned it on and saw replays of the attack on the World Trade Center.

“I started to shake,” Jacobs said, adding that she went upstairs to get dressed and “put my clothes on inside out” and spent the rest of the day watching TV.

“And then the first person that came to the house was Jill,” she said. “I hadn’t called her to come, but she just showed up, and she was there for me, as usual.”

Jacobs said she usually flies on the Sept. 11 anniversary to pay tribute to her fallen United Airlines colleagues and as a way of distracting herself “because it's so upsetting.” But she wanted to be with the first lady in Shanksville to offer the same kind of support her big sister has given her.

“It's such a special moment to be together with her,” Jacobs said. “She was there for me at the time that it happened and she actually is always there for me. She is my rock. Everybody should have a rock in their life, and she is mine.”

“And it’s such a special thing to share it with her as a flight attendant and that she’s there, you know, supporting us,” Jacobs said.

In addition to laying a wreath at the memorial and delivering remarks, the first lady was joining members of the Association of Flight Attendants-CWA to honor the Flight 93 crew members.

In her prepared remarks for Sunday, Jill Biden says that after the shock of 9/11 “settled into sorrow” and she had spoken with her husband and children, her thoughts turned to her sister, who continues to work as a flight attendant with United Airlines.

“It’s a job that she has loved for many years and I knew that the weight of this tragedy would be heavier for her,” the first lady says. “When I got to her house, I realized that I was right. She hadn’t just lost colleagues. She had lost friends.”

She adds: “But I know that, as we learned more about that dark day, she felt pride for what happened here as well, pride that it was fellow flight attendants and the passengers of United Flight 93 who fought back, who helped stop the plane from taking an untold number of lives in our nation’s capital."

Joe Biden, now president, was to commemorate the day at the Pentagon. Vice President Kamala Harris and her husband, Doug Emhoff, were to be at the New York remembrance.

On 9/11, then-Sen. Biden arrived in Washington to see smoke in the sky from the crash at the Pentagon. He wanted to go to the floor of the Senate, but the Capitol and the surrounding complex of offices and official buildings, including the Supreme Court, had been evacuated.

He was turned away by Capitol police, who said there was a risk that the building was a target.

Jill Biden said scores of lives were saved — including possibly her husband's — by the actions of everyone aboard United Airlines Flight 93.

“That plane was headed for the US Capitol and so I think it’s important that every year we go to Shanksville and we remember those who fought: the flight attendants, the captains, the pilots, all of those who fought to save those lives,” the first lady said in the interview.

She said her message Sunday would be, “We will never forget. We will never forget.”

“There were so many things swirling that day because I was worried about Joe’s safety, but I just could not imagine that my sister was on one of those flights,” the first lady said.

“I don’t know what word I want to use. I was so worried and I don’t even think that’s strong enough,” she added.

Jacobs interjected to say 9/11 was “surreal.”

Jill Biden added: “The whole thing was so surreal, but I was just, you know, just really praying that she was not on one of those flights.”



NASA Rover Observes Aurora on Mars in Visible Light for 1st Time

The first visible-light image of a green aurora on Mars (left), taken by NASA's Perseverance rover, is seen next to a comparison image showing the night sky without the aurora but featuring the Martian moon Deimos (right), in this image released by NASA on May 14, 2025. NASA/JPL-Caltech/ASU/MSSS/SSI/Handout via REUTERS
The first visible-light image of a green aurora on Mars (left), taken by NASA's Perseverance rover, is seen next to a comparison image showing the night sky without the aurora but featuring the Martian moon Deimos (right), in this image released by NASA on May 14, 2025. NASA/JPL-Caltech/ASU/MSSS/SSI/Handout via REUTERS
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NASA Rover Observes Aurora on Mars in Visible Light for 1st Time

The first visible-light image of a green aurora on Mars (left), taken by NASA's Perseverance rover, is seen next to a comparison image showing the night sky without the aurora but featuring the Martian moon Deimos (right), in this image released by NASA on May 14, 2025. NASA/JPL-Caltech/ASU/MSSS/SSI/Handout via REUTERS
The first visible-light image of a green aurora on Mars (left), taken by NASA's Perseverance rover, is seen next to a comparison image showing the night sky without the aurora but featuring the Martian moon Deimos (right), in this image released by NASA on May 14, 2025. NASA/JPL-Caltech/ASU/MSSS/SSI/Handout via REUTERS

NASA's Perseverance rover has observed an aurora on Mars in visible light for the first time, with the sky glowing softly in green in the first viewing of an aurora from any planetary surface other than Earth.

Scientists said the aurora occurred on March 18, 2024, when super-energetic particles from the sun encountered the Martian atmosphere, precipitating a reaction that created a faint glow across the entire night sky. Auroras have been observed previously on Mars by satellites from orbit in ultraviolet wavelengths, but not in visible light.

The sun three days earlier had unleashed a solar flare and an accompanying coronal mass ejection - a huge explosion of gas and magnetic energy that brings with it large amounts of solar energetic particles - that traveled outward through the solar system. Mars is the fourth planet from the sun, following Mercury, Venus and Earth.

Scientists had simulated the event in advance and prepared instruments on the rover to be ready to observe the expected aurora. Perseverance has two instruments that are sensitive to wavelengths in the visible range, meaning they detect colors human eyes can see. The researchers used the rover's SuperCam spectrometer instrument to identify exactly the wavelength of the green glow and then used its Mastcam-Z camera to take a snapshot of the softly glowing green sky.

An aurora forms on Mars the same way as on Earth, with energetic charged particles colliding with atoms and molecules in the atmosphere, exciting them, and causing subatomic particles called electrons to emit light particles called photons.

"But on Earth, the charged particles are channeled into the polar regions by our planet's global magnetic field," said Elise Wright Knutsen, a postdoctoral researcher at the University of Oslo's Center for Space Sensors and Systems and lead author of the study published this week in the journal Science Advances.

"Mars has no global magnetic field so the charged particles bombarded all of Mars at the same time, which leads to this planet-wide aurora," Reuters quoted Knutsen as saying.

The green color occurred because of the interaction between the charged particles from the sun and oxygen in the Martian atmosphere. While auroras can be brilliant, as often seen in Earth's northernmost and southernmost regions, the one observed on Mars was quite faint.

"This specific aurora we observed on March 18th of last year would have been too faint for humans to see directly. But if we get a more intense solar storm, it could become bright enough for future astronauts to see. And with a camera, such as an iPhone, you would clearly see it, rather like how an aurora on Earth is always brighter in images than with the naked eye," Knutsen said.

This particular event did not impact Earth.

All the planets with atmospheres in our solar system experience auroras.

"Various types and wavelengths of aurora have been observed previously from Mars-orbiting satellites. All previous observations have been in the UV, but they have had wildly different shapes. From the global, diffuse aurora we observed now, to discrete arcs and patches near the crustal fields (regional magnetic fields) in the south, and large-scale sinuous shapes," Knutsen said.

If astronauts from Earth visit Mars and perhaps establish a long-term presence on the planet's surface, they may be treated to a nighttime light show.

"During a more intense solar storm, producing a brighter aurora, I think a sky which glows green from horizon to horizon will be eerily beautiful," Knutsen said.

"The aurora will appear as a soft green glow covering more or less the whole sky," Knutsen added. "Dust in the lower part of the atmosphere would obscure some of the light towards the horizon, and if you looked straight up it would also be fainter simply because looking at a slant angle will allow you to see through a thicker section of the atmosphere that is emitting the aurora."