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Southwest Airlines on Wednesday flagged softer August leisure bookings and joined two other US airlines in warning of higher fuel costs in the third quarter due to a jump in crude prices.

The largest US domestic carrier said August bookings were at the lower end of its expectations, in part due to seasonal trends, but maintained that overall leisure demand and yields remain healthy.

Shares of Southwest fell 4% premarket, before paring some losses to close down 2.6% at $29.97.

The forecast comes as early signs emerge of domestic travel demand weakening, with inflationary pressures hurting consumers even as carriers hand out costly contracts to retain workers.

United Airlines and Alaska Air Group also warned of higher fuel costs in the current quarter as crude oil prices rose for a third straight month in August, amid signs of tightening supply.

In a regulatory filing, United said jet fuel prices have climbed over 20% since mid-July.

The carrier also said it had no imminent plans to move its headquarters to Denver from Chicago after buying 113 acres of land there. Finance Chief Gerald Laderman at the TD Cowen Transportation Conference said the first order of business is the expansion of the flight training center in Denver.

Southwest said it continues to forecast a “solid (third-quarter) profit,” but trimmed its expectations for revenue per available seat mile – a proxy for pricing power – to a 5% to 7% fall, compared with a 3% to 7% fall forecast earlier.

Alaska Air expects a quarterly adjusted pre-tax margin of 10% to 12%, lower than its prior expectation of 14% to 16%.

US airlines do not generally hedge against fuel costs, making them vulnerable to price swings.

“The relatively quick up move in fuel has given the industry little time to respond through fares,” Citi Research analyst Stephen Trent said in a note.

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Science

NASA’s Hubble and Webb Discover Bursting Star Formation in Small Magellanic Cloud

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NASA’s Hubble and Webb Discover Bursting Star Formation in Small Magellanic Cloud

Scientists from NASA observed the bursting expansion of gas, stars, and dust from the glittering territory of the dual star clusters using Hubble and Webb space telescopes. NGC 460 and NGC 456 stay in the Small Magellanic Cloud, which are open clusters, with dwarf galaxies and orbit the Milky Way. These clusters are part of the extensive star complex clusters and nebulae that are most likely to be linked to each other. Stars are born upon the collapse of clouds.

Hubble and Webb Reveal Explosive Star Births in Small Magellanic Cloud

As per a report from NASA, the open clusters are from anywhere from a few dozen to many young stars, which are loosely bound by gravity. The images captured by Hubble capture the glowing and ionised gas, which comes from stellar radiation and blows bubbles in the form of gas and dust, which is blue in colour. The infrared of Webb shows the clumps and delicate filament-like structures and dust, which is red in colour.

NGC 460 and NGC 456: A Window into Early Universe Star Formation

Hubble shows the images of dust in the form of a silhouette against the blocking light; however, in the images of Webb, the dust is warmed by starlight and glows with infrared waves. The blend of gas and dust between the stars of the universe is called the interstellar medium. The region holding these clusters is known as the N83-84-85 complex and is home to multiple, rare O-type stars. These are hot and extremely massive stars that burn hydrogen like the Sun.

Such a state mimics the condition in the early universe; therefore, the Small Magellanic Cloud gives a nearby lab to find out the theories regarding star formation and the interstellar medium of the cosmos’s early stage.

With these observations, the researchers tend to study the gas flow from convergence to divergence, which helps in refining the difference between the Small Magellanic Cloud and its dwarf galaxy, and the Large Magellanic Cloud. Further, it helps in knowing the interstellar medium and gravitational interactions between the galaxies.

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Binance’s CZ threatens to sue Bloomberg over Trump stablecoin report

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Binance’s CZ threatens to sue Bloomberg over Trump stablecoin report

Binance’s CZ threatens to sue Bloomberg over Trump stablecoin report

Binance co-founder CZ has dismissed a Bloomberg report linking him to the Trump-backed USD1 stablecoin, threatening legal action over alleged defamation.

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Science

New Interstellar Object 3I/ATLAS Could Reveal Secrets of Distant Worlds

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New Interstellar Object 3I/ATLAS Could Reveal Secrets of Distant Worlds

The entry of a third known object into our solar system has been confirmed on July 1, 2025 by the astronomers. This object is named 3I/ATLAS, where 3I stands for “Third Interstellar”, having a highly hyperbolic (eccentricity ≈ 6.2) orbit, confirming it is not bound to the Sun but is a true interstellar visitor. Only two such visitors, 1I/ʻOumuamua (2017) and 2I/Borisov (2019), had been seen before. Notably, 3I/ATLAS appears to be the largest and brightest interstellar wanderer yet discovered.

Comparison with previous interstellars

According to NASA, astronomers from the ATLAS survey first spotted the object on July 1, 2025, using a telescope in Chile. It immediately drew attention for its unusual motion. Shortly after discovery, observers saw a faint coma and tail, leading to its classification as comet C/2025 N1 (ATLAS).

This comet-like appearance is shared with 2I/Borisov, the second interstellar visitor. Global observatories now track 3I/ATLAS. It poses no threat but offers a rare opportunity to study alien material. Since 1I/ʻOumuamua was observed only as it was leaving the solar system, it was difficult for astronomers to get enough data on it to confirm its exact nature — hence the crazy theories about it being an alien spaceship — though it’s almost certainly an asteroid or a comet.

Size and Significance

3I/ATLAS is much larger and brighter than earlier interstellar visitors. It is about 15 kilometers (km) [9 miles] in diameter, with huge uncertainty, compared to 100m for 1I/’Oumuamua and less than 1km for 2I/Borisov. This brightness and size makes it a a better target for study. Astronomers are planning to analyze its light for chemical signatures from its home system to get clues about the formation of distant planetary systems.

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