Mukremin Kilic, OU astrophysicist, and team have discovered two detached, eclipsing double white dwarf binaries with orbital periods of 40 and 46 minutes, respectively. Only a handful of white dwarf binaries are know with orbital periods less than one...
The geometry of the auroral appearance as seen from Kyoto on Sept. 17 1770, is calculated for its reconstruction. Diamonds show the positions of the red aurora tangentially mapped to the flat plane of the 60 by 80 field-of-view,...
Many active galactic nuclei are surrounded by large, dark, donut-shaped clouds of gas and dust, as seen in this artist's rendering. A popular theory known as the 'unified theory' suggests that differences in the brightness of active galactic nuclei,...
A new paper suggests hydrogen—possibly water ice—in the Medusa Fossae area of Mars, which is in an equatorial region of the planet to the lower left in this view.
Credit: Steve Lee (University of Colorado), Jim Bell (Cornell University), Mike...
This is a depiction of Mars today and what a warm and wet ancient Mars might have looked like.
Credit: Wei Luo, Northern Illinois University
A new study led by Northern Illinois University geography professor Wei Luo calculates the amount of...
This is a snapshot of a computer simulation of two (relatively small) planets colliding with each other. The colours show how the rock of the impacting body (dark grey, in centre of impact area) accretes to the target body...
On Aug. 21, a solar eclipse was visible across the US, a rare occurrence.
Credit: NSO/AURA/NSF
In a briefing on solar eclipse science, leading U.S. scientists highlighted research projects that took place across the country during the August 21 solar eclipse....
ESA Astronauts training in terrestrial lava tubes in Lanzarote during the PANGEA 2016 course.
Credit: ESA/L. Ricci
Lava tubes, underground caves created by volcanic activity, could provide protected habitats large enough to house streets on Mars or even towns on the...
Image showing where transits of our solar system planets can be observed. Each line represents where one of the planets could be seen to transit, with the blue line representing Earth; an observer located here could detect us.
Credit: 2MASS...
At the Pierre Auger Observatory in Argentina, cosmic rays have been detected from far off galaxies.
Credit: Pierre Auger Observatory
In an article published today in the journal Science, the Pierre Auger Collaboration has definitively answered the question of whether cosmic...
DSS-14 is NASA's 70-meter (230-foot) antenna located at the Goldstone Deep Space Communications Complex in California. It is known as the "Mars Antenna" as it was first to receive signals from the first spacecraft to closely observe Mars, Mariner...
