Astronomers Uncover “Hypersoft” X-ray Sources
X-rays showcase some of the most unique astronomical objects in the universe. Neutron stars and black holes siphoning gas from companion stars stick out like sore thumbs at this level…
APOD: 2026 September 20 – Analemma over the Callanish Stones
APOD Science APOD APOD: 2026 September 20 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day…
The Sun Is Physically Capable of Producing a “Superflare” According To A New Study
We have long known that the Sun is active. It “flares” quite often, sending huge amounts of energy off in a certain direction – sometimes directly at Earth. But we…
APOD: 2026 September 19 – A Zodiacal Night
APOD Science APOD APOD: 2026 September 19 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day…
MIT Research Could Lead to Refueling Depots on Mars
MIT PhD candidate Lanie McKinney is developing technology to convert the chemicals in the Martian atmosphere into propellant to bring astronauts home.
Researchers Measure the Environment Where the First Supermassive Black Holes Formed
Scientists theorize that the rapid emergence of supermassive black holes (SMBHs) in the early Universe can be explained by the direct-collapse black hole (DCBH) scenario. In a recent study, astronomers…
BepiColombo Makes Up-Close Measurement of Mercury’s Solar Bombardment
BepiColombo’s measurements of particle bombardment at Mercury will help assess the impact of space storms on Mercury’s surface and on Earth’s atmosphere.
NASA Invites Media to Albania Artemis Accords Signing Ceremony
Credit: NASA The Republic of Albania will sign the Artemis Accords during a ceremony at 12 p.m. EDT on Monday, Sept. 21, at NASA Headquarters in Washington, becoming the 73rd…
The Red Planet Has a Purple Side
Mars appears red because of iron oxides in the regolith. But it’s not uniformly red. Different lighting conditions and different materials accumulated on the surface can make it appear purple,…
NASA-JAXA XRISM Mission Sees Pulsar Gathering Companion’s ‘Wind’
5 min read NASA-JAXA XRISM Mission Sees Pulsar Gathering Companion’s ‘Wind’ Using data from the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) observatory, astronomers have directly observed a giant star’s…