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Almost 200 countries are gathering in Dubai to attend the biggest climate event of the year. COP28 – the 2023 United Nations climate change summit – isn’t just another conference though. For the first time, country representatives will assess the progress they’ve made towards cutting their greenhouse gas emissions through a process called the ‘global stocktake’.
Mary Cleave, who launched twice on the space shuttle before becoming the first woman to head NASA's science division, has died. Cleave was the 10th woman to fly in space and spent 11 days in orbit.
The Hubble Space Telescope has entered an automatic safe mode due to gyroscope difficulties, but scientists aren't worried about the observatory's health.
A 'Cannibal' plasma eruption from the sun will hit Earth on Dec. 1. Scientists predict strong geomagnetic storm conditions and impressive auroras.
Spectral analysis of the mystery asteroid Phaethon reveals its composition at last.
An international team of astronomers have used the NASA/ESA/CSA James Webb Space Telescope to provide the first observation of water and other molecules in the inner, rocky-planet-forming regions of a disc in one of the most extreme environments in our galaxy.
All solar system planets circle our sun with slightly tilted orbits — and a new study shows even distant planetary systems in quiet neighborhoods have orbital tilts, too.
El Niño is in full swing and will likely remain "strong" this winter, but its effect on weather patterns in the U.S. depends on the behavior of an unusually warm blob in the western Pacific, experts say.
The James Webb Space Telescope has found water and organic carbon molecules in the vicinity of a massive, active young star.
Located at a distance of 2.5 million light-years, the Andromeda Galaxy is readily visible to the unaided eye on dark, clear nights. Here's where you should look this week.
You’d think that something happening billions of light-years away wouldn’t affect Earth, right? Well, in 2002, a burst of gamma rays lasting 800 seconds actually impacted our planet. They came from a powerful and very distant supernova explosion. Its gamma-ray bombardment disturbed our planet’s ionosphere and activated lightning detectors in India.
NASA astronaut Jasmin Moghbeli watched Russia's Progress MS-23 cargo ship burn up in Earth's atmosphere just hours after it undocked from the International Space Station.
The year's most spectacular meteor shower is upon us. Prepare to enjoy the Geminids under a dark, moonless sky, when you might see more than 100 meteors per hour.
You'll have five opportunities in the coming months to see Jupiter's moons in interesting alignments.
Salt glaciers on Mercury suggest conditions friendly to life — but not life itself — might once have existed on the innermost planet.
A Dual Engine Centaur upper stage for Atlas V nears completion at the factory in Decatur, Alabama. The RL10 engine marked 60 years of flight on Nov. 27, 2023. Image: United Launch Alliance
A rocket engine with a long pedigree marked a big milestone on Monday. It’s 60 years since the hydrogen-fueled RL10 engine debuted onboard a Centaur upper stage launched from Cape Canaveral on Nov. 27, 1963.
A Falcon 9 heads on a south-easterly trajectory from Cape Canaveral on Nov. 28, 2023, carrying a batch of Starlink satellites into orbit. Image: Pete Carstens.
The next batch of Starlink satellites for SpaceX’s space-based internet service soared into orbit aboard a Falcon 9 rocket Monday night from Cape Canaveral Space Force Station.
The small object orbiting around main-belt asteroid 5457 Queen’s is the second confirmed asteroid moon discovered during a stellar occultation.
The Orion Nebula is a favourite among stargazers, certainly one of mine. It’s a giant stellar nebula out of which, hot young stars are forming. Telescopically to the eye it appears as a grey/green haze of wonderment but cameras reveal the true glory of these star forming regions. The Sun was once part of such an object and astronomers have been probing their secrets for decades. Now, a new paper presents the results from a detailed study from the James Webb Space Telescope (JWST) that has been exploring planet forming disks around stars in the Lobster Nebula.
According to the U.S. National Academies of Sciences, Engineering, and Medicine, men should drink 3.7litres of water a day and women 2.7litres. Now imagine a crew of three heading to the Moon for a 3 week trip, that’s something of the order of 189 litres of water, that’s about 189 kilograms! Assuming you have to carry all the water rather than recycle some of it longer trips into space with more people are going to be logistically challenging for water carriage alone. Researchers from the U.S. Naval Research Laboratory (NRL) have discovered lunar rocks with hydrogen in them which, when combined with lunar oxygen provide a possibly supply for future explorers.
Observing distant objects is no easy task, thanks to our planet’s thick and fluffy atmosphere. As light passes through the upper reaches of our atmosphere, it is refracted and distorted, making it much harder to discern objects at cosmological distances (billions of light years away) and small objects in adjacent star systems like exoplanets. For astronomers, there are only two ways to overcome this problem: send telescopes to space or equip telescopes with mirrors that can adjust to compensate for atmospheric distortion.
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