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Universe Today

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03/19/2024 01:25 AM
Planetary Geophysics: What is it? What can it teach us about finding life beyond Earth?

Universe Today has examined the importance of studying impact craters, planetary surfaces, exoplanets, astrobiology, solar physics, comets, and planetary atmospheres, and how these intriguing scientific disciplines can help scientists and the public better understand how we are pursuing life beyond Earth. Here, we will look inward and examine the role that planetary geophysics plays in …

The post Planetary Geophysics: What is it? What can it teach us about finding life beyond Earth? appeared first on Universe Today.



03/18/2024 08:15 PM
This New Map of 1.3 Million Quasars Is A Powerful Tool

Quasars are the brightest objects in the Universe. The most powerful ones are thousands of times more luminous than entire galaxies. They’re the visible part of a supermassive black hole (SMBH) at the center of a galaxy. The intense light comes from gas drawn toward the black hole, emitting light across several wavelengths as it …

The post This New Map of 1.3 Million Quasars Is A Powerful Tool appeared first on Universe Today.



03/18/2024 07:57 PM
Webb Finds Hints of a Third Planet at PDS 70

The exoplanet census now stands at 5,599 confirmed discoveries in 4,163 star systems, with another 10,157 candidates awaiting confirmation. So far, the vast majority of these have been detected using indirect methods, including Transit Photometry (74.4%) and Radial Velocity measurements (19.4%). Only nineteen (or 1.2%) were detected via Direct Imaging, a method where light reflected …

The post Webb Finds Hints of a Third Planet at PDS 70 appeared first on Universe Today.



03/18/2024 07:15 PM
Improving a 1960s Plan to Explore the Giant Planets

In the 1960s, NASA engineers developed a series of small lifting-body aircraft that could be dropped into the atmosphere of a giant planet, measuring the environment as they glided down. Although it would be a one-way trip to destruction, the form factor would allow a probe to glide around in different atmospheric layers, gathering data …

The post Improving a 1960s Plan to Explore the Giant Planets appeared first on Universe Today.



03/18/2024 05:41 PM
Finally, an Explanation for the “String of Pearls” in Supernova 1987A

Not long after the explosion of Supernova 1987a, astronomers were abuzz with predictions about how it might look in a few years. They suggested a pulsar would show up soon and many said that the expanding gas cloud would encounter earlier material ejected from the star. The collision would light up the region around the …

The post Finally, an Explanation for the “String of Pearls” in Supernova 1987A appeared first on Universe Today.



03/18/2024 04:10 PM
NASA is Working on Zero-Boil Off Tanks for Space Exploration

No matter what mode of transportation you take for a long trip, at some point, you’ll have to refuel. For cars, this could be a simple trip to a gas station, while planes, trains, and ships have more specialized refueling services at their depots or ports. However, for spacecraft, there is currently no refueling infrastructure …

The post NASA is Working on Zero-Boil Off Tanks for Space Exploration appeared first on Universe Today.



03/18/2024 02:48 AM
Webb Reveals Secrets of Neptune’s Evolution

A twinset of icy asteroids called Mors-Somnus is giving planetary scientists some clues about the origin and evolution of objects in the Kuiper Belt. JWST studied them during its first cycle of observations and revealed details about their surfaces, which gives hints at their origins. That information may also end up explaining how Neptune got …

The post Webb Reveals Secrets of Neptune’s Evolution appeared first on Universe Today.



03/16/2024 07:55 PM
Little Red Dots in Webb Photos Turned Out to Be Quasars

In its first year of operation, the James Webb Space Telescope (JWST) made some profound discoveries. These included providing the sharpest views of iconic cosmic structures (like the Pillars of Creation), transmission spectra from exoplanet atmospheres, and breathtaking views of Jupiter, its largest moons, Saturn’s rings, its largest moon Titan, and Enceladus’ plumes. But Webb …

The post Little Red Dots in Webb Photos Turned Out to Be Quasars appeared first on Universe Today.



03/16/2024 02:24 AM
The Maximum Mass of a Neutron Star is 2.25 Solar Masses

When stars grow old and die, their mass determines their ultimate fate. Many supermassive stars have futures as neutron stars. But, the question is, how massive can their neutron stars get? That’s one that Professor Fan Yizhong and his team at Purple Mountain Observatory in China set out to answer. It turns out that a …

The post The Maximum Mass of a Neutron Star is 2.25 Solar Masses appeared first on Universe Today.



03/15/2024 10:39 PM
Could Earth Life Survive on a Red Dwarf Planet?

Even though exoplanet science has advanced significantly in the last decade or two, we’re still in an unfortunate situation. Scientists can only make educated guesses about which exoplanets may be habitable. Even the closest exoplanet is four light-years away, and though four is a small integer, the distance is enormous. That doesn’t stop scientists from …

The post Could Earth Life Survive on a Red Dwarf Planet? appeared first on Universe Today.




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