Gaia has discovered three stellar mass black holes, each with a small stellar companion. For two of these systems the companions orbit closer that we would expect. Just how these systems form is a bit of a mysteries, but there are clues....
Future gravitational wave observatories will be able to see the gravitational waves of close-orbiting binary stars. A newly studied white dwarf system could be one of the first systems we observe....
The planet Mars is a cold and dry world completely devoid of life, but billions of years ago things were much different. This is when Mars had a much warmer interior than it does today, resulting in active volcanism that replenished its atmosphere, a magnetic ...
Spacecraft famously have small bits of them disintegrate on reentry. Thatโs by design, as it is one of the easiest solutions to absorbing the incredible amounts of energy they experience. However, it also results in long turn around times while these heat shie...
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Pulsar Timing Arrays have been used to observe the background of gravitational waves in our galaxy. We aren't certain of their origin, but a new study shows a strong source could be early supermassive giants known as dark stars....
The Sloan Digital Sky Survey (SDSS) has officially launched its twentieth data release (DR20), featuring updated data from multiple observations projects....
The newest DESI Legacy Imaging Surveys map covers three-quarters of the sky and catalogs nearly four billion objects. This publicly-available database contains stars, galaxies, supernovae, gravitational lenses, and much more....
The planet Venus is arguably the most mischievous planetary body in the solar system. This is because like Saturnโs largest moon, Titan, Venus is shrouded in a thick atmosphere that canโt be viewed with optical telescopes and require radar images to see the su...
Only a little over a month after Viking 1 landed on Mars, Viking 2 followed suit. Though the two Viking landers touched down in different locations, they used identical spacecraft and had the same mission: to create global maps of Mars, observe weather pattern...
Looking for a sky event this week? Check out our fullย Sky This Weekย column.ย September 3: The Moon in Taurus Last Quarter Moon occurs at 3:51 A.M. EDT, leaving our evening sky completely dark and perfect for searching out fainter, deep-sky targets.ย High in th...
Looking for a sky event this week? Check out our fullย Sky This Weekย column.ย September 4: Get in a workout Titan, Saturnโs brightest moon, orbits its parent world with a period of about 16 days. Youโll find this moon passing near Saturn today and tomorrow, whe...