By Ellis Kim, CNN

(CNN) — The US House will vote Tuesday on a measure to enact year-round Daylight Saving Time across the country, springing Congress forward into an issue that has long stumped lawmakers and spurred impassioned pleas by parents, farmers and others with sharply divergent views.

If the measure passes, it will head to the Senate for approval before going to the president for his signature — though its chances in the upper chamber remain unclear. Proponents argue it would spare Americans from having to change their clocks, disrupting young children’s sleep schedules and arguably causing more seasonal depression. But detractors say it could have economic consequences, particularly for farmers who would have to wrestle with later sunrises.

President Donald Trump has long decried the semiannual ritual of Americans changing their clocks, though his position on whether the country should default to standard or saving time has evolved.

He cheered Tuesday’s bill, the Sunshine Protection Act, when it advanced out of the House Energy and Commerce Committee in May. “Hundreds of Millions of Dollars are spent every year by people, Cities, and States, being forced to change their Clocks,” he said in a Truth Social post.

“It’s time that people can stop worrying about the ‘Clock,’ not to mention all of the work and money that is spent on this ridiculous, twice-yearly production. It will also be a very nice WIN for the Republican Party. Take it!” the post said.

Many states are ready to embrace the shift. According to the National Conference of State Legislatures, 19 states have enacted legislation to switch to year-round Daylight Saving Time if Congress allows it. But the bill also allows states to opt out if they act before it takes effect, which could affect residents in Hawaii, much of Arizona, and various US territories who observe standard time.

Like Trump, congressional lawmakers have long taken an interest in passing laws to “ditch the switch” and make Daylight Saving Time permanent. The issue has generated zealous lobbying and strong advocacy from interest groups including the golf industry, filmmakers, farmers and educators. Support and opposition do not fall on clean party lines.

Proponents of Tuesday’s measure argue dropping the clock change would come with a raft of benefits, including sparing Americans from losing an hour of sleep in the spring and other inconveniences. They argue more work hours in sunlight means less seasonal depression, more recreational and economic activity, and less crime in the evenings.

“There’s a lot of science on this, and really the question is, why do we still change our clocks? That’s a question many of us ask every time we have to do it, and it’s getting harder and harder to justify,” Democratic Rep. Frank Pallone said at a House committee hearing Monday.

But detractors of the change make the same arguments — pointing to economic benefits and the health of Americans. Lawmakers hailing from agricultural districts warn farmers could be devastated by long winter mornings that see the sun rise later, especially in districts where some won’t see sunlight un

Por Katie Hunt, CNN

Astrónomos detectaron azúcar natural presente en las frambuesas en nubes interestelares de polvo y gas cerca del centro de la galaxia Vía Láctea.

El hallazgo, descrito como un descubrimiento prometedor, demuestra por primera vez que compuestos fundamentales para la vida pueden formarse en la vasta región entre las estrellas y alimenta el optimismo de que otras moléculas importantes para el origen de la vida también podrían encontrarse en el espacio.

Un equipo encabezado por astrónomos del Centro de Astrobiología de España detectó el azúcar llamado eritrulosa, una molécula compuesta por cuatro átomos de carbono. Los azúcares desempeñan un papel esencial en los sistemas vivos, ya que ayudan a proporcionar energía, construir estructuras biológicas y formar parte del material genético, como el ARN y el ADN.

Para realizar las observaciones, el equipo utilizó dos radiotelescopios: uno ubicado en el Observatorio de Yebes, al norte de Madrid, y otro en el Instituto de Radioastronomía Milimétrica (IRAM), en Sierra Nevada, en el sur de España. Ambos estudiaron una nube molecular conocida como G+0.693−0.027, situada cerca del centro de la galaxia.

Los investigadores identificaron el azúcar al comparar su firma molecular en los datos de ondas de radio obtenidos de la nube molecular con el patrón de longitudes de onda de la eritrulosa medido previamente en laboratorio. Inicialmente, el equipo buscaba azúcares más simples con tres átomos de carbono, pero no encontró ninguno.

“Este hallazgo fue inesperado, ya que la visión predominante en la astroquímica sostiene que las moléculas interestelares aumentan de tamaño mediante la incorporación secuencial de átomos de carbono”, dijo en un comunicado Izaskun Jiménez-Serra, astrónoma del Centro de Astrobiología de Madrid y del Consejo Superior de Investigaciones Científicas (CSIC). Jiménez-Serra es la autora principal de la investigación, publicada este lunes en la revista Nature Astronomy.

“Nuestro descubrimiento demuestra que azúcares relativamente complejos ya pueden sintetizarse en el espacio interestelar, antes incluso de que nazcan las estrellas y los planetas”, añadió por correo electrónico.

El estudio sugiere que la eritrulosa puede formarse a partir de moléculas más simples sobre granos de polvo cubiertos de hielo en el espacio y posteriormente integrarse en sistemas químicos más complejos. Hasta ahora, los científicos habían detectado más de 340 moléculas en el polvo y los gases presentes en el espacio interestelar de la Vía Láctea, pero ninguna correspondía a un azúcar, señala la investigación.

“Se han encontrado azúcares y compuestos relacionados con ellos en asteroides, pero el descubrimiento de estos compuestos en el espacio interestelar refuerza la hipótesis de que nuestro sistema solar pudo haber sido sembrado con compuestos orgánicos preexistentes”, dijo por correo electrónico Mark Sephton, profesor del Departamento de Ciencias e Ingeniería de la Tierra del Imperial College London, quien no participó en el estudio.

Durante mucho tiempo, los científicos se han preguntado cómo se formaron por primera vez las moléculas de azúcar en la Tierra. Experimentos de laboratorio han demostrado que estos compuestos no se generan con facilidad bajo las condiciones extremas que se cree existían en las primeras etapas de la historia del planeta.

La detección previa de azúcares como la ribosa y la glucosa en meteoritos primitivos y en muestras del asteroide Bennu recolectadas en 2020 llevó a los científicos a plantear que algunos azúcares podrían haberse originado en e

By Morgan Rimmer, CNN

(CNN) — Darline Graham, the late Sen. Lindsey Graham’s younger sister, was sworn into the Senate on Tuesday to serve out the remainder of her brother’s term after his sudden death over the weekend.

She was appointed to the seat by South Carolina Gov. Henry McMaster and will remain in the Senate until January 2027. Graham is the first woman to represent South Carolina in the Senate. As she serves out the remainder of her brother’s term, a special primary election will take place August 11 to replace the late Republican lawmaker in November’s general election to determine who will next hold the seat for the upcoming six-year term.

Graham, 62, has not previously held elected office but has a long history of public service in the state of South Carolina. She has served as a commissioner for the South Carolina Commission for the Blind and has long worked with people with disabilities.

After their parents died within 15 months of each other, she became orphaned at age 13 in 1976. Lindsey Graham — the first in his family to attend college, and a member of the Reserve Officers’ Training Corps — became his sister’s legal guardian.

The siblings were close their entire lives, Darline Graham told CNN’s Dana Bash in a 2015 interview after her brother launched his bid for the 2016 Republican presidential nomination. “Even when my parents were alive, they worked really long, hard hours running a small business. So even then, he was a caregiver to me,” she said.

Sen. Tim Scott joined Graham at her swearing in on the Senate floor, conducted by the Senate’s President pro tempore Chuck Grassley.

Lindsey Graham, a longtime Republican from South Carolina and ally of President Donald Trump, died following an aortic dissection, according to a preliminary finding from the Washington, DC, medical examiner. He was 71.

Throughout US history, governors have at times chosen family members to take over Senate seats for their loved ones, frequently with a spouse picked to step in. Former Vice President Hubert Humphrey’s wife is one example; Muriel Humphrey filled her husband’s Senate seat after he passed away, as did Hattie Caraway after her husband died in office in 1931. Caraway went on to become the first woman elected to the Senate in her own right in 1932.

Lincoln Chafee was appointed to fill his father’s Rhode Island Senate seat. Sen. Lisa Murkowski was appointed by her own father to take over his Senate seat after he became Alaska’s governor in 2002 — a controversial decision at the time.

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CNN’s Eric Bradner contributed to this report

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By Betsy Klein, Holmes Lybrand, Manu Raju, CNN

(CNN) — President Donald Trump downplayed the idea Tuesday that Sen. Lindsey Graham’s death was a result of any nefarious activity, saying the FBI is “wasting their time” if they’re pursuing conspiracy theories about the matter.

According to four law enforcement sources who spoke with CNN, investigators have no indication that Graham died from unnatural or nefarious causes. One of the sources said local police are conducting a normal review after someone dies, and the FBI has just offered their resources if necessary.

“I know there’s all sorts of conspiracy theories going along, and I don’t think the FBI — I think the FBI is wasting their time if they’re doing that,” Trump said when asked why the FBI was looking into the death or if he had gotten any updates.

The medical examiner has said preliminarily that Graham suffered an aortic dissection – a tear in his artery that is life threatening in most cases. Commentators online have suggested more sinister theories. Far-right activist Laura Loomer, for example, pointed to Graham having just returned from Ukraine, where he pushed for sanctions against Russia, before his death Saturday. GOP Sen. John Cornyn called for the release of a toxicology report to “rule out any foul play.”

Some in the law enforcement community felt FBI Director Kash Patel added fuel to the fire when he cryptically posted on X following Graham’s death that the FBI was “assisting local authorities and has made every necessary resource available.” And the public confusion was compounded when FBI agents were seen entering Graham’s home in Washington, DC, on Monday – with no clear indication as to why, as sources had indicated previously there weren’t signs of foul play.

Neither Patel nor the FBI has publicly clarified the director’s statement. Sources told CNN that Patel’s post was meant to reference the normal review process law enforcement takes following a lawmaker’s death.

Much of what is known publicly from those who interacted with Graham in the hours before his death does not point to any foul play.

GOP Sen. Tommy Tuberville said one of his staffers was with Graham’s scheduler Saturday evening when the South Carolina Republican called the scheduler to complain of chest pains – which could be a symptom of an aortic dissection – and asked her to call for emergency services.

“Lindsey called, called basically, said, ‘Listen, I’m having chest pains. You know, I need to do something,’” Tuberville told reporters on Monday, relaying the account of those involved. CNN also previously reported that emergency responders were dispatched to a DC address for Graham around 8:30 pm ET for a report of someone suffering chest pains, according to audio of the dispatch on Broadcastify.

Several people have said Graham sounded OK in their interactions with him before he died.

Trump has said he talked to Graham on the phone before his death, and Graham indicated he was tired from the trip but otherwise seemed fine. Sen. Katie Britt told CNN she also spoke with Graham this weekend – after he spoke with Trump – and he was