Dhaka | Dhaka City | Bangladeshi News
Dhaka | Dhaka City | Bangladeshi News
Betwi said most countries have improved their power grids, which will prevent long power outages like those that occurred in Sweden in 2003 or Canada in 1989. Still, he suggested that people should have an emergency kit in case there is a power outage for a day or two. Fresh water can also help if […]
Being so close to its star, any atmosphere should be stripped away by stellar radiation and winds. But dissolved gases in the vast lava ocean covering the planet can keep boiling to refill the atmosphere, Hu said. “The planet may not be habitable because it is so hot that it does not contain liquid water, […]
Nothing can escape their gravitational pull, not even light, making them impossible to observe directly. But with M87* in 2019 and Sagittarius A* in 2022, the EHT captured the halo of light that arises from the flow of matter and gas that the black holes suck in and expel. “By visualizing polarized light from hot […]
“After following supernovae and searching for compact objects for more than three decades, it is exciting to finally find the missing evidence for a neutron star,” said lead author Claes Fransson, professor of astrophysics at Stockholm University in Sweden, to JWST. Thank you.” According to the study published in Science Journal. “Neutron stars are extremely […]
“All the planets have been ‘roasted’ more intensely than any other planet in our solar system,” said astronomer Jack Lissauer of NASA’s Ames Research Center in California. On the arXiv research site. Scientists have so far identified more than 5,500 exoplanets – planets outside our solar system – and observed hundreds of stars with many […]
This is where the fast radio bursts come from. “They have the signatures of all the gases they travel through,” Shannon said. Some FRB wavelengths slow down slightly as they travel through this material, giving scientists a way to measure it. This could help them figure out how much matter is in the cosmic web […]
Black holes, celestial bodies known for their gluttony, usually devour so many unlucky stars that they get too close to them in one big gulp, destroying them with their enormous gravitational pull. But it turns out that some people prefer to have breakfast instead of filling their stomach. Researchers say they have watched a supermassive […]
Many stars contain elements that require an extreme amount of heat to produce, such as aluminum which would require temperatures of up to 70 million °C. This is well above the temperature that stars are believed to reach in their core, around the 15–20 million Celsius mark, similar to that of the Sun. So researchers […]
“The secondary gap we see in the system is a strong indication of the presence of an ice giant in the system,” Gaspar said. The observations from Webb, which launched in 2021 and began collecting data last year, were made by its Mid-Infrared Instrument (MIRI). “Until now, nearly all resolved images of debris disks were […]
In the new study, published in Monthly Notices of the Royal Astronomical Society, the international team of researchers set out what they believe is the most likely scenario. Their theory is that a giant, single cloud of gas – about 5,000 times the mass of the Sun – is slowly being consumed by a supermassive […]
For its scientific missions, NASA has tasked industry with developing an unpressurized — that is, open top — rover designed for two people by 2028. Unlike the rovers of the Apollo missions, it would have to operate autonomously even without astronauts on board. This means surviving the cold lunar nights, which can last up to […]
He told AFP that although it was “very close”, there was nothing to worry about. Smaller asteroids fly by every day, but one of this size comes this close to Earth only about once every 10 years, he said. The asteroid will pass 175,000 kilometers (109,000 mi) from Earth at a speed of 28,000 kilometers […]
“If there had been more explosions, the orbit would not have been circular,” Richardson said. “A typical supernova will not destroy the companion, but may further disrupt the orbit. For example, it may give a kick to the system that either makes the orbit more elliptical or even That sends the living star and the […]
The discovery of an asteroid the size of a small shipping truck that posed no threat to humans just days before it passed Earth on Thursday has exposed a blind spot in our ability to predict, astronomers say. Which can really hurt. NASA has for years prioritized detecting asteroids much larger and more existentially threatening […]
