SUNSET: 
How to Warn of Imminent Neutron Star Collisions
What if gravitational-wave observatories could send out alerts right after — or even before — receiving signals of neutron star collisions?
The Eventual Fate of Our Solar System
Have you ever wondered about the future of our solar system? Astronomers have predicted the effect of the Sun's expansion on its planets.
Casting Doubt on a Nearby Black Hole
New research has shown that the recently-discovered closest black hole to Earth might not be a black hole after all but a binary star.
Citizen Science: Projects & Collaboration
Taking Stock of Backyard Worlds
Scientists have used the Spitzer Space Telescope to confirm seventy-five new substars uncovered by the citizen science project Backyard Worlds: Planet 9.
Will Radio Bursts Reveal Hidden Baryons?
Scientists are using radio emission from pulsars and fast radio bursts to probe the circumgalactic medium around the Milky Way.
Hints of Young Solar Systems
By studying the images of small young star systems, astronomers expect to learn more about the formation of our solar system.
An Infant Pulsar Defies Categorization
The discovery of the youngest pulsar yet has lead astronomers to question the current classification system of these objects.
Alignment of a Star and a Planet
Unlike in our solar system, not all planets orbit in the same direction as their stars rotate. A nearby planetary system may reveal how these orbits form.
Exploring Links Between Nearby Asteroids
In preparation for the launch of Destiny+, a new study reveals that two near-Earth asteroids may share the same parent.
Are We Watching a Planet Disintegrate?
Among the wealth of exoplanets we’ve discovered beyond our solar system, some are temperate, some less so. New observations have now revealed what may be a particularly inhospitable environment: a planet literally disintegrating as it orbits its host.
What Kinds of Black Hole Partners Merge?
New research on black hole mergers reveals that the black hole pairs tend to have similar masses — suggesting that they start out as massive stellar pairs.
Rescuing an Overlooked Planet
The Kepler False Positive Working Group has identified an Earth sized planet in the habitable zone of a M-dwarf star that was marked as a false positive.
A Detailed View of Our Second Interstellar Visitor
What do we know about the second object to visit us from another stellar system? Detailed Hubble images have given us plenty to consider!
Faint Repetitions of an Extragalactic Burst
New evidence deepens the mystery of fast radio bursts (FRBs), the brief flashes of radio emission stemming from unknown sources beyond our galaxy.
An Extreme Pulsar Seen in Gamma Rays
One of the fastest spinning radio pulsars known has now been detected to pulse in gamma rays, too. What can we learn from these new observations?
The Appearance of a Black Hole’s Shadow
In April of this year, the Event Horizon Telescope captured the first detailed images of the shadow of a black hole. In a new study, a team of scientists has now explored what determines the size and shape of black hole shadows like this one.
Should We Blame Pulsars for Too Much Antimatter?
A new study suggests that pulsars are not the source of an unexpected surplus of antimatter particles detected by a space-based experiment. Dark matter remains a viable alternative explanation.
Two Eyes to Hunt Stray Planet Masses
How can we measure the masses of free-floating planets wandering around our galaxy? A new study identifies one approach that combines the power of two upcoming missions.
Are There More Stars Like Boyajian’s Star?
Remember KIC 8462852, better known as Boyajian’s star (or you may have seen it referred to as the “alien megastructure” star)? We still don’t have a definitive explanation for this source’s odd behavior — in part because we thought that Boyajian’s star was one-of-a-kind.
Planetary History Written in Saturn’s Rings
Saturn is subtly pulsing and oscillating — and those oscillations impose a pattern on its rings that could tell us about the planet’s history.
