We present ALMA band 7 data of the extreme OH/IR star, OH 26.5+0.6. In addition to lines of CO and its isotopologues, the circumstellar envelope also exhibits a...

In the last six years, thanks to the very high radial velocity precision of the HARPS spectrograph, it was possible to detect 21 out of the 30 super-Earth...

We obtained deep optical imaging of the Alpha Per open cluster using the KPNO 4-m CCD mosaic camera, MOSA, on November 19-22 1998. All of the images were...

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A few remarkable examples of alternative cosmological theories are shown, ranging from a compilation of variations on the Standard Model (inhomogeneous universe...

Regular monitoring of the light curves of blazars has become increasingly valuable as space missions such as ROSAT, CGRO and ASCA have subjected many objects to...

The object CXOM31 J004245.9+411036, reported as a new X-ray source in ATel #1859 from M31 Chandra observations, is the previously reported XMMU J004245.9+411036...

The Slovak Video Meteor Network based on four stations from October 2013 (double station from 2009) and two cameras on the Canary Islands from March 2015 have...