Short summary - the risk from larger asteroids of 1 km upwards, large enough to have some global effects is more or less retired as a result of astronomical searches for the last few decades. There…

A distant planet has an abundance of helium in its atmosphere so great that it has swollen to resemble an inflated balloon. The helium of HAT-P-11b, 124 light years from Earth and in the Cygnus…

One of the most baffling puzzles of modern astrophysics is the nature of Fast Radio Bursts, which were discovered in 2007. These are seemingly rare, extremely bright flashes of light with radio…

Coverage began at 2 p.m. Eastern (7 p.m. UTC). Landing started about 40 minutes later, the entire landing telemetry was streamed live through the briefcase sized Mars Cube One interplanetary "cube…

More Mars landing attempts have failed than on any other planet or moon due to one fundamental physical property of Mars. That property is the atmosphere. This is the reality NASA will face…

This is running as a scary story in the more sensationalist science outlets. Dark matter barely interacts with matter and if they are right we are right in the middle of it already. It can’t do any…

Nothing to worry about for us. It's pointing in the wrong direction to ever harm us with the gamma ray burst jet. Their best fit model is that it is angled at 30 degrees to the line of sight. It is…

This is a very bizarre click bait title from the NY Post that is scaring people. There is nothing here to worry anyone. It is not true at all,even the article itself says nothing about the planet…

Short summary: it's an entertaining but rather far fetched proposal in an arxiv preprint not published anywhere but mentioned in a Scientific American op ed. Implausible for many reasons including…

I am getting many people contacting me scared of this asteroid, which was proved to miss Earth back on 1st August 2002! Right now, it is coming from below Earth's orbit, but not directly towards us.…