Astrobiology50- Page

Earth-like and super-Earth candidates from Bryson et al. (2021) are displayed in the effective temperature–instellation flux plane, as in Bryson et al. (2021). The conservative and optimistic habitable zones defined

Schematic of a zebrafish embryo at the late cleavage stage. The blastoderm is positioned at the AP atop the yolk cell at the vegetal pole (VP). The last row of

Spectra of different stellar types. On the left, scaled and vertically shifted flux from NewEra stellar grid is shown on the y-axis and wavelength is shown in microns on the

Spectroscopic observations of β Pic obtained on April 29, 2025. The HARPS spectrum is not flux-calibrated and was simply renormalized to a flux level similar to that of the STIS

Location of Dale’s base camp on the shore of Lake Untersee, Antarctica — Google Earth Keith’s note: A quick snapshot of the weather at Lake Untersee and A forecast for

Evolutionary timeline showing early stromatolite biofilms to modern interkingdom biofilms. Biofilms are intricately associated with life on Earth, enabling functions essential to human and plant systems, but their susceptibility to

James Webb Space Telescope — NASA January 23, 2026 NASA has recently begun preparations for the Artemis II mission, which will send four astronauts on a journey around the Moon.

(Top Insets) SPHEREx 0.75-5.0μm imaging of 3I/ATLAS taken on 08-to-15-Dec2025. The 6.3’x6.3’ cutout contours are 5,20,&50 times the background noise; color bars are in MJy/sr. The celestial North-and-East directions are

Schematic illustration of the synthetic quorum-sensing system. (a) PDDA– ATP coacervates encapsulate trypsinogen and BZAR. Upon external introduction of trypsin, an autocatalytic feedback loop activates local trypsinogen, leading to cleavage