High-mass stars with eight or more solar masses are mysterious. Despite the fact that they're more easily observed than their lower-mass counterparts, astrophysicists have struggled to explain how they become so massive. The problem is that while they accrete material and become more massive, they're also shedding mass.
Deep beneath the ice at the South Pole sits one of the world's most extraordinary scientific instruments: the IceCube neutrino detector. Since 2009, this massive facility has been hunting for ghostly particles called neutrinos that constantly bombard Earth from the depths of space.
Imagine looking up at the night sky and watching a star almost completely disappear, then reappear months later. That's exactly what happened with a distant star called ASASSN-24fw, leaving astronomers scratching their heads for months.
NASA's Perseverance rover has turned its attention to towering sand formations called megaripples at a site named Kerrlaguna on Mars. These windblown features, standing up to a metre tall, are providing new insights into how wind shapes the red planet today and could even help prepare for future human missions to Mars.
Sometimes in science a negative result is just as important as a positive one. And sometimes data artifacts get the better of even the best space observatories. Both of those ideas seem to hold true for the James Webb Space Telescope’s recent observation of Epsilon Eridani, one of our nearest stars, and one that has decades worth of debate about whether there is a planet orbiting it or not. Unfortunately, while JWST’s NIRCam did find some interesting features, they were too close to a noise source in the telescope's instruments to be definitively labeled a “planet”. Their results were recently published on arXiv, and while it may sound disappointing, this type of work is exactly how science progresses.
SpaceX executed the most successful flight test of its super-powerful Starship launch system to date, featuring Starship’s first-ever payload deployment and a thrilling Indian Ocean splashdown. Today’s 10th test flight followed three earlier missions that fell short of full success.
To date, 5983 exoplanets have been confirmed in 4,470 star systems, with more than 15,000 candidates awaiting confirmation. Combined with next-generation telescopes like the James Webb Space Telescope (JWST), this massive census is ushering in a new era of astrobiology studies. By analyzing spectra obtained from exoplanet atmospheres, scientists are now able to characterize them and detect chemical signatures that could be indications of life and biological processes (aka. biosignatures). These surveys are also a way of learning more about the evolution of planets and their climates over time.
What can parabolic flights teach scientists and engineers about electrolyzers and how the latter can help advance human missions to the Moon and Mars? This is the goal of a recent grant awarded to the Mars Atmospheric Reactor for Synthesis of Consumables (MARS-C) project, which is sponsored by the Southwest Research Institute (SwRI) and The University of Texas at San Antonio (UTSA). The $500,000 award for this research is part of NASA’s TechLeap Prize program with the goal of testing experimental electrolyzer technology that can be used for future missions.
Stars have layers like onions, according to theory. The layers are made of different elements, progressing from light to heavy the deeper the layers are. While the theory is strong, observing the inner layers of a star has been basically impossible.
Fast radio bursts (FRBs) are some of the most powerful signals in the universe. They can emit as much power in a few milliseconds as our Sun does in several days. Despite their strength, we still don’t have a definitive answer to what causes them. That is partly because, at least for the ones that only happen once, they are really hard to point down. But a new extension to the Canadian Hydrogen Intensity Mapping Experiment (CHIME) might provide the resolution needed to determine where non-repeating FRBs come from - and its first discovery was one of the brightest FRBs of all time, which helped researchers track it with an unprecedented level of precision, as described in a new paper in The Astrophysical Journal Letters.
Jupiter holds secrets at its heart that continue to puzzle scientists. The largest planet in our Solar System has what researchers call a "dilute core,” a central region that doesn't have sharp boundaries like once expected. Instead of a distinct rocky centre surrounded by layers of gas, Jupiter's core gradually blends into the hydrogen-rich layers above it, creating a smooth transition zone.
When NASA's Nancy Grace Roman Space Telescope launches in October 2026, it won't just be peering into the distant universe to study dark energy and exoplanets. This powerful observatory will also serve as Earth's newest guardian, helping scientists track and understand potentially dangerous asteroids and comets that could threaten our planet.
Asteroids floating through our Solar System are debris left over from when our planetary neighbourhood formed 4.6 billion years ago. Scientists study these ancient fragments as time capsules that reveal secrets about our Solar System's earliest days. Now, new research has uncovered a surprising connection between two completely different types of asteroids that may actually share the same dramatic origin story.
Supernovae are among the most energetic phenomena in the Universe, and definitely one of the most spectacular! These events take place when a star has reached the end of its life cycle and undergoes gravitational collapse at its center, exploding and shedding its outer layers in the process. For astronomers, supernovae are not only a fascinating field of study, shedding light on the evolution of stars, but are also a means of measuring distance and the rate at which the Universe is expanding. They are an essential part of the Cosmic Distance Ladder because their brightness makes them very reliable "standard candles."
The “Wow!” signal has been etched red marker in the memory of advocates for the search for extraterrestrial intelligence (SETI) since its unveiling in 1977. To this day, it remains one of the most enigmatic radio frequency signals ever found. Now a new paper from a wide collection of authors, including some volunteers, provides some corrections, and some new insights, into both the signal and its potential causes.
Using scientific instruments in novel ways is a common practice, but still results in significant new discoveries. But sometimes, it doesn’t happen so much as a “that’s funny” moment as an intentional new use of old equipment. A new paper from researchers that Imperial College London (ICL), PhD student Solomon Hirsch and his advisor Mark Sephton, shows how the gas chromatograph-mass spectrometers that have been a mainstay of Martian probes since the Viking era could be used to find extant life there.
You know, if you think about it, and trust me we’re about to, the Moon is kind of weird. Of all the terrestrial worlds of the solar system, we’re the only one with a substantial natural satellite. Mercury and Venus have nothing. And while Mars technically has two moons, they’re really just captured asteroids and don’t really count. Sorry Phobos and Deimos, but that’s the way it is.
When NASA's Dawn mission arrived at Ceres in 2015, scientists and the general public got their first detailed look at this strange and beautiful planetoid. As the largest object in the Main Asteroid Belt, accounting for more than 39% of its total mass, Ceres is the only object in the Belt that has undergone hydrostatic equilibrium (aka. became round under the influence of its own gravity). The data Dawn obtained between 2015 and 2018, when the mission ran out of fuel, revealed some very interesting things about this mysterious, icy planetoid.
Since the dawn of the Space Age, agencies have relied on powerful arrays of communication antennas positioned worldwide to control, coordinate, and retrieve data from their missions. Today, NASA and its partner agencies rely on the Deep Space Network (DSN) to communicate with the many probes, orbiters, landers, and rovers they have operating beyond Earth. These signals also lead to "spillover," where radio signals reach far beyond robotic missions and propagate for light-years through space.
All Rights Reserved. 2025. SpaceZE.com
