A new study of six young, star-forming galaxies suggests they’re less influenced by dark matter than expected. But the results may say more about galaxy evolution than about the nature of dark matter.
Thanks to a record haul of new, ultra-distant quasars-powerhouses of light from the farthest reaches of the universe-astrophysicists can now piece together the rise of mighty objects in the early cosmos.
Winds that charge away from supermassive black holes at a fraction of the speed of light have long been mysterious and even contentious. Now, new evidence sheds light on their origins.
Cassini gave us a good look a Saturn’s moon Pan last week . . . and what a strange world it is.
The strange bright deposits inside Occator crater on Ceres are probably from cryovolcanic eruptions that are much younger than the crater itself.
The nearly last-quarter Moon is only a few degrees from Saturn. Look for them together in the south early in the dawn of Monday the 20th.
Comet 41P/Tuttle-Giacobini-Kresak begins its best showing of the year this week as it slingshots across the Big Dipper into circumpolar skies. Meanwhile, comet ace Terry Lovejoy has just discovered a new morning comet.
In this month’s easy-to-download podcast, find out how you can glimpse Venus in both the evening and predawn skies.
Dr. Michelle Thaller talks to two NASA astrobiologists on when and how we’ll explore Europa’s subsurface ocean, and what we might find there.