The glowing filaments indicate that these active galaxy cores were once emitting more energy or changed very rapidly, which they weren’t supposed to do.
Scientists believe non-gaseous planets are as prevalent around binaries as around single stars.
Out of more than 15 entries, the St. Louis Astronomical Society wins Astronomy’s annual award honoring astronomy outreach programs.
By studying a young star in images 18 years apart, scientists have been able to see exactly what their models predicted.
A recent study shows that RR Lyrae stars may not be as lonely as previously thought.
Pinpointing when and how they formed should provide insight into the process of galaxy cluster evolution, including the role played by dark matter in shaping these cosmic metropolises.
Cassini’s orbits had carried it high above the planet’s poles over the past two years, during which the mission’s ability to encounter the moons, apart from Titan, was limited.
A new study suggests carbon from comets breaking apart acts like a stealth darkening agent on the innermost planet.
Even though cosmic magnetic fields are much weaker than Earth's magnetic field, they have an important effect in regulating how stars form.
The earlier episode at Jezero Crater formed clay minerals, and then later surface water activity transported them.
In a new report, scientists show that using a particular class of type Ia supernovae that occur near youthful stars can improve measurements of cosmic distances.
It is most likely to be a young star with a massive core that is still accreting material.
Dark matter does not slow down when colliding with each other, which means that it interacts with itself even less than previously thought.
The finding validates a long-suspected feedback mechanism enabling a supermassive black hole to influence the evolution of its host galaxy.
The dwarf galaxy is the least abundant in metals in the nearby universe and one of the most akin to the primeval galaxies.
The new work addresses why the terrestrial planets in our solar system have such relatively low masses compared to the exoplanets orbiting other Sun-like stars.
Scientists have long thought that nitrates would be produced on the Red Planet from the energy released in meteorite impacts, and the amounts they found agree with estimates from this process.
Observations reveal that a particular supernova produced a cloud that contains enough dust to make 7,000 Earths.
The observed outburst reveals a sudden accumulation of gas and dust.