From the Field / Space
A Weather Map for a Distant World Separates Cloud From Chemistry
Repeated infrared observations are helping astronomers distinguish moving cloud decks from the chemical signatures in an exoplanet atmosphere.
Author profile
Mara Chen
Space and physics editor
Mara Chen contributes science reporting and analysis to Helix.
Latest work
Physics / Field Report
A Quantum Sensor Network Looks for Dark Matter as a Shared Disturbance
Instead of waiting for one detector to spike, physicists are comparing synchronized instruments for a pattern that crosses them in sequence.
Mara Chen / Jul 23, 2026 / 8 min
Space / Field Report
A Far-Side Seismic Network Could Listen Below the Moon's Oldest Craters
Prototype instruments are being designed to survive long lunar nights while recording the faint vibrations that reveal the Moon's interior.
Mara Chen / Jul 22, 2026 / 8 min
Space / Discovery
A New Map of the Cosmic Web Turns Empty Space Into Structure
Early survey fields from a space telescope show how weak gravitational lensing can make dark matter visible as a pattern rather than a picture.
Mara Chen / Jul 18, 2026 / 8 min
Physics / Field Report
Inside the Repair Plan for a Fusion Magnet That Cannot Simply Be Replaced
Engineers are developing remote tools and inspection sequences for superconducting hardware buried inside a tightly coupled machine.
Mara Chen / Jul 17, 2026 / 9 min
Space / Discovery
A Split-Second Radio Flash Could Weigh the Matter Between Galaxies
Astronomers are testing whether precisely timed fast radio bursts can reveal otherwise invisible material along the line of sight.
Mara Chen / Jul 14, 2026 / 6 min
Physics / Explainer
An Atomic Clock Can Measure Height by Watching Time Change
Portable optical clocks are becoming sensitive enough to compare gravity across buildings, mountains, and geological surveys.
Mara Chen / Jul 8, 2026 / 6 min
Physics / Explainer
A Future Muon Collider Depends on a Race Against Decay
Particle physicists are revisiting an old machine idea because muons could probe high energies cleanly, if engineers can cool them fast enough.
Mara Chen / Jul 7, 2026 / 8 min
Space / Analysis
Mini-Neptunes May Be Losing Their Skies One Quiet Leak at a Time
Astronomers are comparing repeated transit observations to see whether small planets shed atmosphere gradually instead of through dramatic blasts.
Mara Chen / Jul 6, 2026 / 6 min
Physics / Explainer
Dark Matter Detectors Are Getting Close Enough to Hear Neutrinos
The next generation of underground searches must distinguish rare candidate events from an unavoidable background of ordinary particles.
Mara Chen / Jun 28, 2026 / 7 min
Space / Explainer
A Starshade Test Turns Exoplanet Imaging Into a Navigation Challenge
Engineers are studying how a free-flying screen could align with a telescope precisely enough to dim a distant star.
Mara Chen / Jun 24, 2026 / 6 min
Physics / Discovery
A Room-Temperature Quantum Link Trades Fragility for Distance
Researchers are testing whether integrated photonic devices can move quantum states through practical networks without laboratory-only conditions.
Mara Chen / Jun 22, 2026 / 6 min
Physics / Field Report
Fusion Wall Materials Are Learning to Survive the Edge
Test facilities are exposing candidate materials to heat, particles, and cycling that approximate the hostile boundary of a reactor plasma.
Mara Chen / Jun 14, 2026 / 7 min
Physics / Analysis
Tabletop Gravity Experiments Ask How Small a Source Can Be
Precision teams are designing instruments that test gravitational behavior with masses small enough to sit inside a laboratory enclosure.
Mara Chen / Jun 9, 2026 / 6 min