A new study explores the impacts of stars that age past the main sequence and evolve into red giants on the planets orbiting around them by looking at the orbits of gas giants closely circling evolved stars.
Catch up on this week in astronomy news with a trio of images: a pair of near-Earth asteroid twins, ground-based views that beat Hubble's, and the tumultuous galactic center.
Over the past 18 months, astronomers have painstakingly tracked a dozen tiny moons that they found circling the giant planet Jupiter.
Comet PanSTARRS (C/2017 S3) has erupted again! Now bright enough to see in binoculars, it might become a naked-eye object if it survives until perihelion.
On the night of July 27, 2018, the longest total lunar eclipse for the next 105 years will be visible across parts of Europe, Africa, Asia and Australia. Six months later, on January 20, 2019, there will be the 'Great American' lunar eclipse, where totality is visible across all 50 states.
A new National Academies study assesses NASA's efforts to protect neighboring worlds from contamination and recommends ways the space agency could do a better job.
There’s no hiding — changes in Earth’s atmosphere over the seasons are a dead giveaway to the fact that Earth hosts life. Now a new study explores whether we might use atmospheric seasonality like Earth’s to detect life on other planets. Looking for Change Most of the searches for life beyond our planet focus on…
With opposition only weeks away, will the current global dust storm finally break? We look at the prospects.
Hanging dramatically in the west during twilight next Sunday evening (July 15, 2018) will be a bright “star” and crescent: Venus and the Moon. The cosmic couple will be quite the eye-catcher if your sky is clear.
The expedition off the coast of Washington state performs a first, recovering meteorite fragments from a documented fall.
Astronomers using a new instrument on the Very Large Telescope in Chile have directly imaged a newborn planet. Our understanding of planet formation is often shrouded in theoretical models. But now, scientists have directly observed a new planet in the gaseous disk around a young star about 370 light-years from Earth. The search for new…
This week in astronomy: Simulations show what kind of cataclysmic impact shaped the ice giant Uranus's evolution, new observations from Juno reveal complex auroral patterns due to Jupiter's moons, and NuSTAR provides conclusive evidence that the superstar Eta Carinae acts as a cosmic-ray accelerator.
The last and one of the most picturesque occultations of Aldebaran by the Moon happens on Tuesday morning, July 10. Catch it or wait 15 years for the next!
Scientists aren't comfortable yet saying that organics on Saturn's icy moon arose from life, but they have an idea of what to look for next.
July's a busy month for skywatching. Not only are five bright planets in view, but three comets and a newly-discovered nova are also observable. And it all starts with a bang on Independence Day.
Researchers have mapped the magnetic field in Supernova 1987A, shedding light on how stellar blasts act as particle accelerators.
New observations give more fuel to the concept of intermediate-mass black holes.
This month's astronomy podcast tells you how to spot a five bright planets — Mercury, Venus, Mars, Jupiter, and Saturn — in the evening sky.
Despite significant cost overruns, NASA's James Webb Space Telescope is now set for a March 2021 launch — assuming it receives Congressional reauthorization.
Researchers have found that 'Oumuamua — the first confirmed object to enter the solar system from interstellar space — was a comet, releasing just enough gas to subtly change its course.
We got a peek at a new worldlet in the inner solar system this week, as the Japanese Aerospace Agency's (JAXA) Hayabusa-2 gave us our first good looks at the tiny asteroid 162173 Ryugu.
Astronomers have conducted the best, galaxy-scale test of general relativity yet, and it rules out some (but not all) theories of modified gravity.
Will Mars soon be hidden under a veil of dust? Let's hope not. We explore the current storm and the planet's upcoming close opposition.
Scientists have discovered that a supervolcano likely created a mysterious rock formation on Mars some 3 billion years ago.
The dust storm on Mars that broke out at the end of May is now affecting the skies across the entire planet.