Astronomy

Habitable worlds may be far more common than thought, Israeli study says

Published in the peer-reviewed The Astrophysical Journal, the research focuses on tidally locked planets, worlds that always show the same face to their star.

 Life beyond Earth may exist in far stranger places than scientists once thought, a new study suggests. January, 22.
The central square image, taken with the MUSE instrument on ESO's Very Large Telescope, shows shock waves around the dead star RXJ0528+2838.

Astronomers spot white dwarf star creating a colorful shockwave

 New information regarded as strong evidence Mars had ‘vacation beaches’. Illustration.

NASA rover detects electrical discharges - 'mini-lightning' - on Mars

This image of interstellar comet 3I/ATLAS was captured by the Hubble Space Telescope’s Wide Field Camera, July 21, 2025.

NASA releases images of comet 3I/ATLAS, rejects alien spacecraft 'rumors'


Sun-observing spacecraft sheds light on the solar wind's origin

New observations by the Solar Orbiter spacecraft may provide an answer as to how the sun generates solar wind.

 The Solar Orbiter spacecraft, built for NASA and the European Space Agency, lifts off from pad 41 aboard a United Launch Alliance Atlas V rocket at the Cape Canaveral Air Force Station in Cape Canaveral, Florida, U.S., February 9, 2020.

Scientists unveil secrets of star violently torn apart near black hole

Astronomers have recently encountered numerous instances of "tidal disruption events."

 This artist’s impression depicts a star being torn apart by an intermediate-mass black hole (IMBH), surrounded by an accretion disc.

Spanish astronomer discovers a galaxy within a galaxy

A Spanish astronomer has discovered an active galactic nucleus at the center of the Sombrero Galaxy.

 The Sombrero Galaxy, also known as Messier Object 104 or NGC 4594.

How did the Milky Way galaxy get its shape?

Our home galaxy, the Milky Way, did not always have its iconic spiral shape. Rather, it acquired its shape through a process called “galactic speciation.”

 This illustration shows a stage in the predicted merger between our Milky Way galaxy and the neighboring Andromeda galaxy, as it will unfold over the next several billion years. In this image, representing Earth's night sky in 3.75 billion years, Andromeda (left) fills the field of view

What sounds do twinkling stars make? - study

To get the "pure sound" of the twinkles the researchers applied a number of filters to the noise hoping to isolate the sounds from environmental interference.

 Stars in the night sky.

NASA's Hubble Telescope records evaporating planet hiccupping during orbits

This variable loss was described as "puffs", meaning that when observed the atmosphere was lost in large bursts followed by almost no loss.

 A young red dwarf star is seen stripping the atmosphere from a nearby planet in this artistic illustration.

Do we need to change the definition of 'life' to find it among the stars?

As long as astronomists continue to search for life outside the borders of our world, biologists are forced to continue to reconsider the meaning of the word "life."

Illustrative image of wildlife.

Hubble telescope captures galaxy clusters merging

Gravitational lensing has the practical effect of a magnifying glass, microscope, or binoculars, and enables scientists to observe celestial bodies that would otherwise be too distant to discern.

NASA's Hubble Space Telescope

Introducing Janus, the exotic 'two-faced' white dwarf star

Scienets have observed a white dwarf star, named for the two-faced ancient Roman god, that appears to have two sides with completely different compositions.

 An artist's concept shows the two-faced white dwarf star nicknamed Janus.

NASA to launch telescopes to investigate 'dark energy' in space

By 2027, a pair of space telescopes will be probing deep space to investigate why the universe's rate of expansion is increasing.

 High-resolution illustration of the Euclid and Roman spacecraft against a starry background.