4 September 2025

The first observation of scandium-63, titanium-65, titanium-66, and vanadium-68 was reported by Tarasov et al. at FRIB. The article Discovery of new isotopes in the fragmentation of 82Se and insights into their production was published in Physical Review C.

10 July 2025

Xu et al. discovered aluminum-20 as described in the Physical Review Letters article "Isospin Symmetry Breaking Disclosed in the Decay of Three-Proton Emitter²⁰ Al." The experiment was performed at the SIS-FRS facility at GSI. 

1 July 2025

Three isotopes of superheavy elements (livermorium-288, livermorium-289, and copernicium-280) were discovered by Oganessian et al. at the SHE Factory of the Flerov Laboratory for Nuclear Reactions (FLNR) at the Joint Institute for Nuclear Research (JINR) in Dubna. The results were published in the Physical Review C paper "Investigation of reactions with 50Ti and 54Cr for the synthesis of new elements."

11 June 2025

The discovery of seaborgium-257 was reported by Mosat et al. in Physical Review Letters: "Probing the Shell Effects on Fission: The New Superheavy Nucleus ²⁵⁷Sg." The experiment was performed with the gas-filled recoil-separator TASCA at GSI.

29 May 2025

Nature Communications published the discovery of two isotopes:

Kokkonen et al. from the Accelerator Laboratory of the University of Jyväskylä in Finland reported the discovery of astatine-188 in "New proton emitter ¹⁸⁸At implies an interaction unprecedented in heavy nuclei."

Zhang et al. reported the discovery of protactinium-210 in "Discovery of the α-emitting isotope ²¹⁰Pa" at the China Accelerator Facility for Superheavy Elements (CAFE2) in Lanzhou, China.

7 April 2025

Suzuki et al. reported the discovery of tin-98 in an experiment performed at RIKEN. The paper "Discovery of ⁹⁸Sn Produced by the Projectile Fragmentation of a 345-MeV/Nucleon ¹²⁴Xe Beam" was published in the journal Progress of Theoretical and Experimental Physics.

14 January 2025

Rutherfordium-252 was discovered by Khuyagbaatar et al. at GSI and reported in Physical Review Letters: "Stepping into the Sea of Instability: The New Sub-μs Superheavy Nucleus ²⁵²Rf."

17 October 2024

Two neutron-rich silicon isotopes were reported by Yoshimoto et al. from RIKEN. Their article "Discovery of Neutron-Rich Silicon Isotopes ^45,46Si" was published in the journal Progress of Theoretical and Experimental Physics.

15 October 2024

Pore et al. discovered dubnium-255 with the Berkeley Gas-filled Separator (BGS). It was published as a Letter in Physical Review C: "Spontaneous fission of the odd-Z isotope ²⁵⁵Db."

3 October 2024

The first observation of plutonium-227 was published in the Physical Review C article "𝛼 decay of the new isotope ²²⁷Pu" by Yang et al. The experiment was performed at the Heavy Ion Research Facility in Lanzhou, China.

12 September 2024

Dronchi et al. reported the discovery of scandium-37, scandium-38, and potassium-34 in an experiment performed at the National Superconducting Cyclotron Laboratory. The letter "Evolution of shell gaps in the neutron-poor calcium region from invariant-mass spectroscopy of ^37,38Sc, ³⁵Ca, and ³⁴K" was published in Physical Review C.

3 September 2024

The discovery of aluminum-21 was published in Physical Review C: "Observation and spectroscopy of the proton-unbound nucleus ²¹Al" by Kostyleva et al. at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany.

23 August 2024

Kahlbow et al. published the first observation of fluorine-30 in Physical Review Letters: "Magicity versus Superfluidity around ²⁸O viewed from the Study of ³⁰F." The experiment was performed at the Radioactive Isotope Beam Factory (RIBF) at RIKEN in Japan.

7 May 2024

The discovery of darmstadtium-275 at the Superheavy Elements (SHE) factory of the Joint Institute for Nuclear Research in Dubna, Russia was published by Oganessian et al. in the Physical Review C article "Synthesis and decay properties of isotopes of element 110: ²⁷³Ds and ²⁷⁵Ds."

9 April 2024

Shimizu et al. reported the first observation of fifteen new isotopes at Radioactive Isotope Beam Factory (RIBF) at RIKEN in Japan. The discovery of copper-84, zinc-86 and 87, gallium-88 and 89, germanium-91 and 92, arsenic-93, 94, and 95, selenium-96 and 97, bromine-99 and 100, as well as krypton-103 was published in the Physical Review C article "Production of new neutron-rich isotopes near the N = 60 isotones ⁹²Ge and ⁹³As by in-flight fission of a 345 MeV/nucleon ²³⁸U beam."

15 February 2024

The first discovery of isotopes at FRIB was published in Physical Review Letters. Tarasov et al. described the observation of thulium-182 and 183, ytterbium-186 and 187, and lutetium-190 in "Observation of New Isotopes in the Fragmentation of ¹⁹⁸Pt at FRIB."

Additionally, in Physical Review Letters, Yang et al. reported the observation of tungsten-156 and osmium-160 at the Heavy Ion Research Facility in Lanzhou (HIRFL), China: "Discovery of New Isotopes ¹⁶⁰Os and ¹⁵⁶W: Revealing Enhanced Stability of the N=82 Shell Closure on the Neutron-Deficient Side." These two isotopes had already been published in November 2023 by Briscoe et al. (see below). However, Yang et al. submitted their paper on 5 July 2023, six days before Briscoe et al. (11 July 2023).

2 February 2024

The discovery of actinium-203 was reported last week by Wang et al. from the Institute of Modern Physics of the Chinese Academy of Science in Lanzhou, China. The article "𝛼-decay properties of new neutron-deficient isotope ²⁰³Ac" was published in Physics Letters B.

29 November 2023

Earlier this month, Briscoe et al. reported the first observation of tungsten-156 and osmium-160 at the Accelerator Laboratory of the University of Jyväskylä, Finland, in Physics Letters B: "Decay spectroscopy at the two-proton drip line: Radioactivity of the new nuclides ¹⁶⁰Os and ¹⁵⁶W."